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Finding the Fourth Proportional to 169,520.90, 254,363.94 and 69,711.08

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Solution

The fourth proportional to 169,520.90, 254,363.94 and 69,711.08 is: 104,600.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,520.90 : 254,363.94 = 69,711.08 : x
  2. Step 2: Convert to fraction form
    169,520.90/254,363.94 = 69,711.08/x
  3. Step 3: Cross multiply
    169,520.90x = 254,363.94 × 69,711.08
  4. Step 4: Simplify right side
    169,520.90x = 17,731,984,970.46
  5. Step 5: Solve for x
    x = 17,731,984,970.46/169,520.90
  6. Step 6: Final answer
    x = 104,600.58

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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.