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Finding the Fourth Proportional to 156,687,681.60, 219,589,502.40 and 156,687,681.60

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Solution

The fourth proportional to 156,687,681.60, 219,589,502.40 and 156,687,681.60 is: 219,589,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,687,681.60 : 219,589,502.40 = 156,687,681.60 : x
  2. Step 2: Convert to fraction form
    156,687,681.60/219,589,502.40 = 156,687,681.60/x
  3. Step 3: Cross multiply
    156,687,681.60x = 219,589,502.40 × 156,687,681.60
  4. Step 4: Simplify right side
    156,687,681.60x = 34,406,970,034,753,636
  5. Step 5: Solve for x
    x = 34,406,970,034,753,636/156,687,681.60
  6. Step 6: Final answer
    x = 219,589,502.40

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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.