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Finding the Fourth Proportional to 132,535.70, 198,412.95 and 87,473.93

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Solution

The fourth proportional to 132,535.70, 198,412.95 and 87,473.93 is: 130,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,535.70 : 198,412.95 = 87,473.93 : x
  2. Step 2: Convert to fraction form
    132,535.70/198,412.95 = 87,473.93/x
  3. Step 3: Cross multiply
    132,535.70x = 198,412.95 × 87,473.93
  4. Step 4: Simplify right side
    132,535.70x = 17,355,960,499.39
  5. Step 5: Solve for x
    x = 17,355,960,499.39/132,535.70
  6. Step 6: Final answer
    x = 130,953.10

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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.