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Finding the Fourth Proportional to 109,596.40, 151,240.44 and 61,851.76

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Solution

The fourth proportional to 109,596.40, 151,240.44 and 61,851.76 is: 85,353.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,596.40 : 151,240.44 = 61,851.76 : x
  2. Step 2: Convert to fraction form
    109,596.40/151,240.44 = 61,851.76/x
  3. Step 3: Cross multiply
    109,596.40x = 151,240.44 × 61,851.76
  4. Step 4: Simplify right side
    109,596.40x = 9,354,487,397.17
  5. Step 5: Solve for x
    x = 9,354,487,397.17/109,596.40
  6. Step 6: Final answer
    x = 85,353.97

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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.