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Finding the Fourth Proportional to 187,296.80, 258,248.72 and 151,375.73

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Solution

The fourth proportional to 187,296.80, 258,248.72 and 151,375.73 is: 208,720.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,296.80 : 258,248.72 = 151,375.73 : x
  2. Step 2: Convert to fraction form
    187,296.80/258,248.72 = 151,375.73/x
  3. Step 3: Cross multiply
    187,296.80x = 258,248.72 × 151,375.73
  4. Step 4: Simplify right side
    187,296.80x = 39,092,587,598.76
  5. Step 5: Solve for x
    x = 39,092,587,598.76/187,296.80
  6. Step 6: Final answer
    x = 208,720.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.