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Finding the Fourth Proportional to 63,903.80, 95,970.90 and 61,830.20

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Solution

The fourth proportional to 63,903.80, 95,970.90 and 61,830.20 is: 92,856.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,903.80 : 95,970.90 = 61,830.20 : x
  2. Step 2: Convert to fraction form
    63,903.80/95,970.90 = 61,830.20/x
  3. Step 3: Cross multiply
    63,903.80x = 95,970.90 × 61,830.20
  4. Step 4: Simplify right side
    63,903.80x = 5,933,899,941.18
  5. Step 5: Solve for x
    x = 5,933,899,941.18/63,903.80
  6. Step 6: Final answer
    x = 92,856.76

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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.