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Finding the Fourth Proportional to 116,892.80, 175,425.60 and 77,436.80

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Solution

The fourth proportional to 116,892.80, 175,425.60 and 77,436.80 is: 116,212.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,892.80 : 175,425.60 = 77,436.80 : x
  2. Step 2: Convert to fraction form
    116,892.80/175,425.60 = 77,436.80/x
  3. Step 3: Cross multiply
    116,892.80x = 175,425.60 × 77,436.80
  4. Step 4: Simplify right side
    116,892.80x = 13,584,397,102.08
  5. Step 5: Solve for x
    x = 13,584,397,102.08/116,892.80
  6. Step 6: Final answer
    x = 116,212.44

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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.