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Finding the Fourth Proportional to 57,656.64, 86,294.40 and 52,475.52

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Solution

The fourth proportional to 57,656.64, 86,294.40 and 52,475.52 is: 78,539.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,656.64 : 86,294.40 = 52,475.52 : x
  2. Step 2: Convert to fraction form
    57,656.64/86,294.40 = 52,475.52/x
  3. Step 3: Cross multiply
    57,656.64x = 86,294.40 × 52,475.52
  4. Step 4: Simplify right side
    57,656.64x = 4,528,343,513.09
  5. Step 5: Solve for x
    x = 4,528,343,513.09/57,656.64
  6. Step 6: Final answer
    x = 78,539.84

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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.