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Finding the Fourth Proportional to 61,800.18, 92,549.10 and 55,809.80

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Solution

The fourth proportional to 61,800.18, 92,549.10 and 55,809.80 is: 83,578.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,800.18 : 92,549.10 = 55,809.80 : x
  2. Step 2: Convert to fraction form
    61,800.18/92,549.10 = 55,809.80/x
  3. Step 3: Cross multiply
    61,800.18x = 92,549.10 × 55,809.80
  4. Step 4: Simplify right side
    61,800.18x = 5,165,146,298.43
  5. Step 5: Solve for x
    x = 5,165,146,298.43/61,800.18
  6. Step 6: Final answer
    x = 83,578.18

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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.