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Finding the Fourth Proportional to 84,843.15, 127,146.50 and 63,758.57

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Solution

The fourth proportional to 84,843.15, 127,146.50 and 63,758.57 is: 95,549.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,843.15 : 127,146.50 = 63,758.57 : x
  2. Step 2: Convert to fraction form
    84,843.15/127,146.50 = 63,758.57/x
  3. Step 3: Cross multiply
    84,843.15x = 127,146.50 × 63,758.57
  4. Step 4: Simplify right side
    84,843.15x = 8,106,678,170.32
  5. Step 5: Solve for x
    x = 8,106,678,170.32/84,843.15
  6. Step 6: Final answer
    x = 95,549.00

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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.