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Finding the Fourth Proportional to 113,673.66, 156,866.02 and 62,688.52

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Solution

The fourth proportional to 113,673.66, 156,866.02 and 62,688.52 is: 86,508.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,673.66 : 156,866.02 = 62,688.52 : x
  2. Step 2: Convert to fraction form
    113,673.66/156,866.02 = 62,688.52/x
  3. Step 3: Cross multiply
    113,673.66x = 156,866.02 × 62,688.52
  4. Step 4: Simplify right side
    113,673.66x = 9,833,698,632.09
  5. Step 5: Solve for x
    x = 9,833,698,632.09/113,673.66
  6. Step 6: Final answer
    x = 86,508.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.