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Finding the Fourth Proportional to 61,070.88, 91,470.96 and 46,926.78

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Solution

The fourth proportional to 61,070.88, 91,470.96 and 46,926.78 is: 70,286.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,070.88 : 91,470.96 = 46,926.78 : x
  2. Step 2: Convert to fraction form
    61,070.88/91,470.96 = 46,926.78/x
  3. Step 3: Cross multiply
    61,070.88x = 91,470.96 × 46,926.78
  4. Step 4: Simplify right side
    61,070.88x = 4,292,437,616.31
  5. Step 5: Solve for x
    x = 4,292,437,616.31/61,070.88
  6. Step 6: Final answer
    x = 70,286.16

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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.