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Finding the Fourth Proportional to 355,436.52, 533,248.22 and 127,755.10

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Solution

The fourth proportional to 355,436.52, 533,248.22 and 127,755.10 is: 191,666.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,436.52 : 533,248.22 = 127,755.10 : x
  2. Step 2: Convert to fraction form
    355,436.52/533,248.22 = 127,755.10/x
  3. Step 3: Cross multiply
    355,436.52x = 533,248.22 × 127,755.10
  4. Step 4: Simplify right side
    355,436.52x = 68,125,179,670.92
  5. Step 5: Solve for x
    x = 68,125,179,670.92/355,436.52
  6. Step 6: Final answer
    x = 191,666.24

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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.