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Finding the Fourth Proportional to 84,925.30, 127,424.40 and 43,372.30

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Solution

The fourth proportional to 84,925.30, 127,424.40 and 43,372.30 is: 65,077.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,925.30 : 127,424.40 = 43,372.30 : x
  2. Step 2: Convert to fraction form
    84,925.30/127,424.40 = 43,372.30/x
  3. Step 3: Cross multiply
    84,925.30x = 127,424.40 × 43,372.30
  4. Step 4: Simplify right side
    84,925.30x = 5,526,689,304.12
  5. Step 5: Solve for x
    x = 5,526,689,304.12/84,925.30
  6. Step 6: Final answer
    x = 65,077.07

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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.