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Finding the Fourth Proportional to 109,437.54, 151,023.80 and 59,136.54

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Solution

The fourth proportional to 109,437.54, 151,023.80 and 59,136.54 is: 81,608.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,437.54 : 151,023.80 = 59,136.54 : x
  2. Step 2: Convert to fraction form
    109,437.54/151,023.80 = 59,136.54/x
  3. Step 3: Cross multiply
    109,437.54x = 151,023.80 × 59,136.54
  4. Step 4: Simplify right side
    109,437.54x = 8,931,024,989.65
  5. Step 5: Solve for x
    x = 8,931,024,989.65/109,437.54
  6. Step 6: Final answer
    x = 81,608.42

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1.5x scale

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.