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Finding the Fourth Proportional to 438,058.92, 657,088.92 and 105,634.92

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Solution

The fourth proportional to 438,058.92, 657,088.92 and 105,634.92 is: 158,452.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,058.92 : 657,088.92 = 105,634.92 : x
  2. Step 2: Convert to fraction form
    438,058.92/657,088.92 = 105,634.92/x
  3. Step 3: Cross multiply
    438,058.92x = 657,088.92 × 105,634.92
  4. Step 4: Simplify right side
    438,058.92x = 69,411,535,497.09
  5. Step 5: Solve for x
    x = 69,411,535,497.09/438,058.92
  6. Step 6: Final answer
    x = 158,452.51

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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.