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Finding the Fourth Proportional to 105,689.92, 145,844.00 and 60,361.65

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Solution

The fourth proportional to 105,689.92, 145,844.00 and 60,361.65 is: 83,294.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,689.92 : 145,844.00 = 60,361.65 : x
  2. Step 2: Convert to fraction form
    105,689.92/145,844.00 = 60,361.65/x
  3. Step 3: Cross multiply
    105,689.92x = 145,844.00 × 60,361.65
  4. Step 4: Simplify right side
    105,689.92x = 8,803,383,451.57
  5. Step 5: Solve for x
    x = 8,803,383,451.57/105,689.92
  6. Step 6: Final answer
    x = 83,294.45

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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.