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Finding the Fourth Proportional to 103,248.54, 142,502.55 and 67,469.22

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Solution

The fourth proportional to 103,248.54, 142,502.55 and 67,469.22 is: 93,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,248.54 : 142,502.55 = 67,469.22 : x
  2. Step 2: Convert to fraction form
    103,248.54/142,502.55 = 67,469.22/x
  3. Step 3: Cross multiply
    103,248.54x = 142,502.55 × 67,469.22
  4. Step 4: Simplify right side
    103,248.54x = 9,614,535,896.51
  5. Step 5: Solve for x
    x = 9,614,535,896.51/103,248.54
  6. Step 6: Final answer
    x = 93,120.31

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1.5x scale

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.