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Finding the Fourth Proportional to 102,772.80, 154,092.60 and 43,592.40

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Solution

The fourth proportional to 102,772.80, 154,092.60 and 43,592.40 is: 65,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,772.80 : 154,092.60 = 43,592.40 : x
  2. Step 2: Convert to fraction form
    102,772.80/154,092.60 = 43,592.40/x
  3. Step 3: Cross multiply
    102,772.80x = 154,092.60 × 43,592.40
  4. Step 4: Simplify right side
    102,772.80x = 6,717,266,256.24
  5. Step 5: Solve for x
    x = 6,717,266,256.24/102,772.80
  6. Step 6: Final answer
    x = 65,360.35

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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.