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Finding the Fourth Proportional to 106,937.91, 147,589.86 and 61,607.07

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Solution

The fourth proportional to 106,937.91, 147,589.86 and 61,607.07 is: 85,026.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,937.91 : 147,589.86 = 61,607.07 : x
  2. Step 2: Convert to fraction form
    106,937.91/147,589.86 = 61,607.07/x
  3. Step 3: Cross multiply
    106,937.91x = 147,589.86 × 61,607.07
  4. Step 4: Simplify right side
    106,937.91x = 9,092,578,836.31
  5. Step 5: Solve for x
    x = 9,092,578,836.31/106,937.91
  6. Step 6: Final answer
    x = 85,026.71

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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.