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Finding the Fourth Proportional to 105,592.91, 145,728.65 and 60,277.70

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Solution

The fourth proportional to 105,592.91, 145,728.65 and 60,277.70 is: 83,189.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,592.91 : 145,728.65 = 60,277.70 : x
  2. Step 2: Convert to fraction form
    105,592.91/145,728.65 = 60,277.70/x
  3. Step 3: Cross multiply
    105,592.91x = 145,728.65 × 60,277.70
  4. Step 4: Simplify right side
    105,592.91x = 8,784,188,361.12
  5. Step 5: Solve for x
    x = 8,784,188,361.12/105,592.91
  6. Step 6: Final answer
    x = 83,189.19

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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.