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Finding the Fourth Proportional to 145,013.76, 217,474.56 and 98,565.12

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Solution

The fourth proportional to 145,013.76, 217,474.56 and 98,565.12 is: 147,816.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,013.76 : 217,474.56 = 98,565.12 : x
  2. Step 2: Convert to fraction form
    145,013.76/217,474.56 = 98,565.12/x
  3. Step 3: Cross multiply
    145,013.76x = 217,474.56 × 98,565.12
  4. Step 4: Simplify right side
    145,013.76x = 21,435,406,103.35
  5. Step 5: Solve for x
    x = 21,435,406,103.35/145,013.76
  6. Step 6: Final answer
    x = 147,816.36

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1.5x scale

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.