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Finding the Fourth Proportional to 169,702.20, 254,577.60 and 57,387.60

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Solution

The fourth proportional to 169,702.20, 254,577.60 and 57,387.60 is: 86,089.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,702.20 : 254,577.60 = 57,387.60 : x
  2. Step 2: Convert to fraction form
    169,702.20/254,577.60 = 57,387.60/x
  3. Step 3: Cross multiply
    169,702.20x = 254,577.60 × 57,387.60
  4. Step 4: Simplify right side
    169,702.20x = 14,609,597,477.76
  5. Step 5: Solve for x
    x = 14,609,597,477.76/169,702.20
  6. Step 6: Final answer
    x = 86,089.62

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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.