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Finding the Fourth Proportional to 132,545.60, 198,688.80 and 118,548.80

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Solution

The fourth proportional to 132,545.60, 198,688.80 and 118,548.80 is: 177,707.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,545.60 : 198,688.80 = 118,548.80 : x
  2. Step 2: Convert to fraction form
    132,545.60/198,688.80 = 118,548.80/x
  3. Step 3: Cross multiply
    132,545.60x = 198,688.80 × 118,548.80
  4. Step 4: Simplify right side
    132,545.60x = 23,554,318,813.44
  5. Step 5: Solve for x
    x = 23,554,318,813.44/132,545.60
  6. Step 6: Final answer
    x = 177,707.29

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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.