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Finding the Fourth Proportional to 118,232.76, 177,349.14 and 78,866.76

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Solution

The fourth proportional to 118,232.76, 177,349.14 and 78,866.76 is: 118,300.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,232.76 : 177,349.14 = 78,866.76 : x
  2. Step 2: Convert to fraction form
    118,232.76/177,349.14 = 78,866.76/x
  3. Step 3: Cross multiply
    118,232.76x = 177,349.14 × 78,866.76
  4. Step 4: Simplify right side
    118,232.76x = 13,986,952,060.59
  5. Step 5: Solve for x
    x = 13,986,952,060.59/118,232.76
  6. Step 6: Final answer
    x = 118,300.14

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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.