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Finding the Fourth Proportional to 147,380,212.80, 220,645,166.40 and 147,380,212.80

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Solution

The fourth proportional to 147,380,212.80, 220,645,166.40 and 147,380,212.80 is: 220,645,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,380,212.80 : 220,645,166.40 = 147,380,212.80 : x
  2. Step 2: Convert to fraction form
    147,380,212.80/220,645,166.40 = 147,380,212.80/x
  3. Step 3: Cross multiply
    147,380,212.80x = 220,645,166.40 × 147,380,212.80
  4. Step 4: Simplify right side
    147,380,212.80x = 32,518,731,577,323,412
  5. Step 5: Solve for x
    x = 32,518,731,577,323,412/147,380,212.80
  6. Step 6: Final answer
    x = 220,645,166.40

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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.