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Finding the Fourth Proportional to 104,058.57, 156,024.65 and 40,802.90

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Solution

The fourth proportional to 104,058.57, 156,024.65 and 40,802.90 is: 61,179.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,058.57 : 156,024.65 = 40,802.90 : x
  2. Step 2: Convert to fraction form
    104,058.57/156,024.65 = 40,802.90/x
  3. Step 3: Cross multiply
    104,058.57x = 156,024.65 × 40,802.90
  4. Step 4: Simplify right side
    104,058.57x = 6,366,258,377.53
  5. Step 5: Solve for x
    x = 6,366,258,377.53/104,058.57
  6. Step 6: Final answer
    x = 61,179.57

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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.