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Finding the Fourth Proportional to 63,117.60, 94,676.40 and 31,948.80

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Solution

The fourth proportional to 63,117.60, 94,676.40 and 31,948.80 is: 47,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,117.60 : 94,676.40 = 31,948.80 : x
  2. Step 2: Convert to fraction form
    63,117.60/94,676.40 = 31,948.80/x
  3. Step 3: Cross multiply
    63,117.60x = 94,676.40 × 31,948.80
  4. Step 4: Simplify right side
    63,117.60x = 3,024,797,368.32
  5. Step 5: Solve for x
    x = 3,024,797,368.32/63,117.60
  6. Step 6: Final answer
    x = 47,923.20

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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.