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Finding the Fourth Proportional to 116,542.80, 174,900.60 and 77,086.80

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Solution

The fourth proportional to 116,542.80, 174,900.60 and 77,086.80 is: 115,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,542.80 : 174,900.60 = 77,086.80 : x
  2. Step 2: Convert to fraction form
    116,542.80/174,900.60 = 77,086.80/x
  3. Step 3: Cross multiply
    116,542.80x = 174,900.60 × 77,086.80
  4. Step 4: Simplify right side
    116,542.80x = 13,482,527,572.08
  5. Step 5: Solve for x
    x = 13,482,527,572.08/116,542.80
  6. Step 6: Final answer
    x = 115,687.35

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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.