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Finding the Fourth Proportional to 147,900,019.80, 221,346,144.90 and 147,900,019.80

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Solution

The fourth proportional to 147,900,019.80, 221,346,144.90 and 147,900,019.80 is: 221,346,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,900,019.80 : 221,346,144.90 = 147,900,019.80 : x
  2. Step 2: Convert to fraction form
    147,900,019.80/221,346,144.90 = 147,900,019.80/x
  3. Step 3: Cross multiply
    147,900,019.80x = 221,346,144.90 × 147,900,019.80
  4. Step 4: Simplify right side
    147,900,019.80x = 32,737,099,213,363,672
  5. Step 5: Solve for x
    x = 32,737,099,213,363,672/147,900,019.80
  6. Step 6: Final answer
    x = 221,346,144.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.