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Finding the Fourth Proportional to 113,650.48, 156,838.48 and 62,665.12

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Solution

The fourth proportional to 113,650.48, 156,838.48 and 62,665.12 is: 86,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,650.48 : 156,838.48 = 62,665.12 : x
  2. Step 2: Convert to fraction form
    113,650.48/156,838.48 = 62,665.12/x
  3. Step 3: Cross multiply
    113,650.48x = 156,838.48 × 62,665.12
  4. Step 4: Simplify right side
    113,650.48x = 9,828,302,169.82
  5. Step 5: Solve for x
    x = 9,828,302,169.82/113,650.48
  6. Step 6: Final answer
    x = 86,478.32

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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.