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Finding the Fourth Proportional to 61,809.15, 92,713.73 and 47,046.90

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Solution

The fourth proportional to 61,809.15, 92,713.73 and 47,046.90 is: 70,570.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,809.15 : 92,713.73 = 47,046.90 : x
  2. Step 2: Convert to fraction form
    61,809.15/92,713.73 = 47,046.90/x
  3. Step 3: Cross multiply
    61,809.15x = 92,713.73 × 47,046.90
  4. Step 4: Simplify right side
    61,809.15x = 4,361,893,348.70
  5. Step 5: Solve for x
    x = 4,361,893,348.70/61,809.15
  6. Step 6: Final answer
    x = 70,570.35

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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.