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Finding the Fourth Proportional to 113,379.80, 170,069.70 and 63,613.40

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Solution

The fourth proportional to 113,379.80, 170,069.70 and 63,613.40 is: 95,420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,379.80 : 170,069.70 = 63,613.40 : x
  2. Step 2: Convert to fraction form
    113,379.80/170,069.70 = 63,613.40/x
  3. Step 3: Cross multiply
    113,379.80x = 170,069.70 × 63,613.40
  4. Step 4: Simplify right side
    113,379.80x = 10,818,711,853.98
  5. Step 5: Solve for x
    x = 10,818,711,853.98/113,379.80
  6. Step 6: Final answer
    x = 95,420.10

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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.