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Finding the Fourth Proportional to 117,557.80, 176,352.90 and 42,659.80

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Solution

The fourth proportional to 117,557.80, 176,352.90 and 42,659.80 is: 63,995.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,557.80 : 176,352.90 = 42,659.80 : x
  2. Step 2: Convert to fraction form
    117,557.80/176,352.90 = 42,659.80/x
  3. Step 3: Cross multiply
    117,557.80x = 176,352.90 × 42,659.80
  4. Step 4: Simplify right side
    117,557.80x = 7,523,179,443.42
  5. Step 5: Solve for x
    x = 7,523,179,443.42/117,557.80
  6. Step 6: Final answer
    x = 63,995.58

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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.