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Finding the Fourth Proportional to 177,718.80, 266,140.80 and 118,232.40

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Solution

The fourth proportional to 177,718.80, 266,140.80 and 118,232.40 is: 177,057.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,718.80 : 266,140.80 = 118,232.40 : x
  2. Step 2: Convert to fraction form
    177,718.80/266,140.80 = 118,232.40/x
  3. Step 3: Cross multiply
    177,718.80x = 266,140.80 × 118,232.40
  4. Step 4: Simplify right side
    177,718.80x = 31,466,465,521.92
  5. Step 5: Solve for x
    x = 31,466,465,521.92/177,718.80
  6. Step 6: Final answer
    x = 177,057.61

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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.