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Finding the Fourth Proportional to 176,892.60, 265,355.10 and 71,689.80

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Solution

The fourth proportional to 176,892.60, 265,355.10 and 71,689.80 is: 107,541.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,892.60 : 265,355.10 = 71,689.80 : x
  2. Step 2: Convert to fraction form
    176,892.60/265,355.10 = 71,689.80/x
  3. Step 3: Cross multiply
    176,892.60x = 265,355.10 × 71,689.80
  4. Step 4: Simplify right side
    176,892.60x = 19,023,254,047.98
  5. Step 5: Solve for x
    x = 19,023,254,047.98/176,892.60
  6. Step 6: Final answer
    x = 107,541.27

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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.