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Finding the Fourth Proportional to 94,116.80, 129,888 and 62,230.40

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Solution

The fourth proportional to 94,116.80, 129,888 and 62,230.40 is: 85,882.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,116.80 : 129,888 = 62,230.40 : x
  2. Step 2: Convert to fraction form
    94,116.80/129,888 = 62,230.40/x
  3. Step 3: Cross multiply
    94,116.80x = 129,888 × 62,230.40
  4. Step 4: Simplify right side
    94,116.80x = 8,082,982,195.20
  5. Step 5: Solve for x
    x = 8,082,982,195.20/94,116.80
  6. Step 6: Final answer
    x = 85,882.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.