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Finding the Fourth Proportional to 47,893,169.60, 71,849,085.60 and 19,134,411.20

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Solution

The fourth proportional to 47,893,169.60, 71,849,085.60 and 19,134,411.20 is: 28,705,344.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,893,169.60 : 71,849,085.60 = 19,134,411.20 : x
  2. Step 2: Convert to fraction form
    47,893,169.60/71,849,085.60 = 19,134,411.20/x
  3. Step 3: Cross multiply
    47,893,169.60x = 71,849,085.60 × 19,134,411.20
  4. Step 4: Simplify right side
    47,893,169.60x = 1,374,789,948,214,398.50
  5. Step 5: Solve for x
    x = 1,374,789,948,214,398.50/47,893,169.60
  6. Step 6: Final answer
    x = 28,705,344.83

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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.