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Finding the Fourth Proportional to 151,713.90, 212,005.80 and 151,713.90

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Solution

The fourth proportional to 151,713.90, 212,005.80 and 151,713.90 is: 212,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,713.90 : 212,005.80 = 151,713.90 : x
  2. Step 2: Convert to fraction form
    151,713.90/212,005.80 = 151,713.90/x
  3. Step 3: Cross multiply
    151,713.90x = 212,005.80 × 151,713.90
  4. Step 4: Simplify right side
    151,713.90x = 32,164,226,740.62
  5. Step 5: Solve for x
    x = 32,164,226,740.62/151,713.90
  6. Step 6: Final answer
    x = 212,005.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.