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Finding the Fourth Proportional to 61,114.40, 91,253.50 and 54,748.18

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Solution

The fourth proportional to 61,114.40, 91,253.50 and 54,748.18 is: 81,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,114.40 : 91,253.50 = 54,748.18 : x
  2. Step 2: Convert to fraction form
    61,114.40/91,253.50 = 54,748.18/x
  3. Step 3: Cross multiply
    61,114.40x = 91,253.50 × 54,748.18
  4. Step 4: Simplify right side
    61,114.40x = 4,995,963,043.63
  5. Step 5: Solve for x
    x = 4,995,963,043.63/61,114.40
  6. Step 6: Final answer
    x = 81,747.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.