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Finding the Fourth Proportional to 61,809.60, 92,714.40 and 55,576.65

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Solution

The fourth proportional to 61,809.60, 92,714.40 and 55,576.65 is: 83,364.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,809.60 : 92,714.40 = 55,576.65 : x
  2. Step 2: Convert to fraction form
    61,809.60/92,714.40 = 55,576.65/x
  3. Step 3: Cross multiply
    61,809.60x = 92,714.40 × 55,576.65
  4. Step 4: Simplify right side
    61,809.60x = 5,152,755,758.76
  5. Step 5: Solve for x
    x = 5,152,755,758.76/61,809.60
  6. Step 6: Final answer
    x = 83,364.98

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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.