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Finding the Fourth Proportional to 63,131.60, 94,697.40 and 51,856.40

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Solution

The fourth proportional to 63,131.60, 94,697.40 and 51,856.40 is: 77,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,131.60 : 94,697.40 = 51,856.40 : x
  2. Step 2: Convert to fraction form
    63,131.60/94,697.40 = 51,856.40/x
  3. Step 3: Cross multiply
    63,131.60x = 94,697.40 × 51,856.40
  4. Step 4: Simplify right side
    63,131.60x = 4,910,666,253.36
  5. Step 5: Solve for x
    x = 4,910,666,253.36/63,131.60
  6. Step 6: Final answer
    x = 77,784.60

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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.