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Finding the Fourth Proportional to 61,117.80, 84,348.54 and 34,260.36

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Solution

The fourth proportional to 61,117.80, 84,348.54 and 34,260.36 is: 47,282.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,117.80 : 84,348.54 = 34,260.36 : x
  2. Step 2: Convert to fraction form
    61,117.80/84,348.54 = 34,260.36/x
  3. Step 3: Cross multiply
    61,117.80x = 84,348.54 × 34,260.36
  4. Step 4: Simplify right side
    61,117.80x = 2,889,811,345.87
  5. Step 5: Solve for x
    x = 2,889,811,345.87/61,117.80
  6. Step 6: Final answer
    x = 47,282.65

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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.