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Finding the Fourth Proportional to 105,592.92, 145,728.67 and 60,277.72

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Solution

The fourth proportional to 105,592.92, 145,728.67 and 60,277.72 is: 83,189.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,592.92 : 145,728.67 = 60,277.72 : x
  2. Step 2: Convert to fraction form
    105,592.92/145,728.67 = 60,277.72/x
  3. Step 3: Cross multiply
    105,592.92x = 145,728.67 × 60,277.72
  4. Step 4: Simplify right side
    105,592.92x = 8,784,191,966.23
  5. Step 5: Solve for x
    x = 8,784,191,966.23/105,592.92
  6. Step 6: Final answer
    x = 83,189.21

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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.