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Finding the Fourth Proportional to 101,624.64, 140,261.61 and 58,631.89

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Solution

The fourth proportional to 101,624.64, 140,261.61 and 58,631.89 is: 80,923.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,624.64 : 140,261.61 = 58,631.89 : x
  2. Step 2: Convert to fraction form
    101,624.64/140,261.61 = 58,631.89/x
  3. Step 3: Cross multiply
    101,624.64x = 140,261.61 × 58,631.89
  4. Step 4: Simplify right side
    101,624.64x = 8,223,803,288.74
  5. Step 5: Solve for x
    x = 8,223,803,288.74/101,624.64
  6. Step 6: Final answer
    x = 80,923.32

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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.