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Finding the Fourth Proportional to 109,453.90, 151,046.40 and 59,152.90

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Solution

The fourth proportional to 109,453.90, 151,046.40 and 59,152.90 is: 81,631.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,453.90 : 151,046.40 = 59,152.90 : x
  2. Step 2: Convert to fraction form
    109,453.90/151,046.40 = 59,152.90/x
  3. Step 3: Cross multiply
    109,453.90x = 151,046.40 × 59,152.90
  4. Step 4: Simplify right side
    109,453.90x = 8,934,832,594.56
  5. Step 5: Solve for x
    x = 8,934,832,594.56/109,453.90
  6. Step 6: Final answer
    x = 81,631.01

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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.