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Finding the Fourth Proportional to 61,479.40, 92,219.10 and 54,869.80

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Solution

The fourth proportional to 61,479.40, 92,219.10 and 54,869.80 is: 82,304.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,479.40 : 92,219.10 = 54,869.80 : x
  2. Step 2: Convert to fraction form
    61,479.40/92,219.10 = 54,869.80/x
  3. Step 3: Cross multiply
    61,479.40x = 92,219.10 × 54,869.80
  4. Step 4: Simplify right side
    61,479.40x = 5,060,043,573.18
  5. Step 5: Solve for x
    x = 5,060,043,573.18/61,479.40
  6. Step 6: Final answer
    x = 82,304.70

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1.5x scale

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.