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Finding the Fourth Proportional to 63,567.68, 87,758.64 and 56,837.12

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Solution

The fourth proportional to 63,567.68, 87,758.64 and 56,837.12 is: 78,466.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,567.68 : 87,758.64 = 56,837.12 : x
  2. Step 2: Convert to fraction form
    63,567.68/87,758.64 = 56,837.12/x
  3. Step 3: Cross multiply
    63,567.68x = 87,758.64 × 56,837.12
  4. Step 4: Simplify right side
    63,567.68x = 4,987,948,352.72
  5. Step 5: Solve for x
    x = 4,987,948,352.72/63,567.68
  6. Step 6: Final answer
    x = 78,466.74

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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.