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Finding the Fourth Proportional to 132,430.20, 198,936.90 and 93,064.20

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Solution

The fourth proportional to 132,430.20, 198,936.90 and 93,064.20 is: 139,801.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,430.20 : 198,936.90 = 93,064.20 : x
  2. Step 2: Convert to fraction form
    132,430.20/198,936.90 = 93,064.20/x
  3. Step 3: Cross multiply
    132,430.20x = 198,936.90 × 93,064.20
  4. Step 4: Simplify right side
    132,430.20x = 18,513,903,448.98
  5. Step 5: Solve for x
    x = 18,513,903,448.98/132,430.20
  6. Step 6: Final answer
    x = 139,801.22

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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.