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Finding the Fourth Proportional to 127,652.46, 176,133.72 and 73,934.28

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Solution

The fourth proportional to 127,652.46, 176,133.72 and 73,934.28 is: 102,013.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,652.46 : 176,133.72 = 73,934.28 : x
  2. Step 2: Convert to fraction form
    127,652.46/176,133.72 = 73,934.28/x
  3. Step 3: Cross multiply
    127,652.46x = 176,133.72 × 73,934.28
  4. Step 4: Simplify right side
    127,652.46x = 13,022,319,771.92
  5. Step 5: Solve for x
    x = 13,022,319,771.92/127,652.46
  6. Step 6: Final answer
    x = 102,013.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.