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Finding the Fourth Proportional to 63,117.52, 94,745.53 and 31,518.71

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Solution

The fourth proportional to 63,117.52, 94,745.53 and 31,518.71 is: 47,312.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,117.52 : 94,745.53 = 31,518.71 : x
  2. Step 2: Convert to fraction form
    63,117.52/94,745.53 = 31,518.71/x
  3. Step 3: Cross multiply
    63,117.52x = 94,745.53 × 31,518.71
  4. Step 4: Simplify right side
    63,117.52x = 2,986,256,883.87
  5. Step 5: Solve for x
    x = 2,986,256,883.87/63,117.52
  6. Step 6: Final answer
    x = 47,312.65

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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.