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Finding the Fourth Proportional to 292,461.76, 438,856.56 and 159,351.28

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Solution

The fourth proportional to 292,461.76, 438,856.56 and 159,351.28 is: 239,116.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,461.76 : 438,856.56 = 159,351.28 : x
  2. Step 2: Convert to fraction form
    292,461.76/438,856.56 = 159,351.28/x
  3. Step 3: Cross multiply
    292,461.76x = 438,856.56 × 159,351.28
  4. Step 4: Simplify right side
    292,461.76x = 69,932,354,572.40
  5. Step 5: Solve for x
    x = 69,932,354,572.40/292,461.76
  6. Step 6: Final answer
    x = 239,116.23

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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.