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Finding the Fourth Proportional to 98,515.52, 135,951.40 and 53,803.52

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Solution

The fourth proportional to 98,515.52, 135,951.40 and 53,803.52 is: 74,248.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,515.52 : 135,951.40 = 53,803.52 : x
  2. Step 2: Convert to fraction form
    98,515.52/135,951.40 = 53,803.52/x
  3. Step 3: Cross multiply
    98,515.52x = 135,951.40 × 53,803.52
  4. Step 4: Simplify right side
    98,515.52x = 7,314,663,868.93
  5. Step 5: Solve for x
    x = 7,314,663,868.93/98,515.52
  6. Step 6: Final answer
    x = 74,248.85

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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.