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Finding the Fourth Proportional to 63,377.40, 87,613.74 and 48,343.80

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Solution

The fourth proportional to 63,377.40, 87,613.74 and 48,343.80 is: 66,831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,377.40 : 87,613.74 = 48,343.80 : x
  2. Step 2: Convert to fraction form
    63,377.40/87,613.74 = 48,343.80/x
  3. Step 3: Cross multiply
    63,377.40x = 87,613.74 × 48,343.80
  4. Step 4: Simplify right side
    63,377.40x = 4,235,581,123.81
  5. Step 5: Solve for x
    x = 4,235,581,123.81/63,377.40
  6. Step 6: Final answer
    x = 66,831.10

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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.