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Finding the Fourth Proportional to 111,472.68, 153,832.59 and 63,727.32

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Solution

The fourth proportional to 111,472.68, 153,832.59 and 63,727.32 is: 87,943.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,472.68 : 153,832.59 = 63,727.32 : x
  2. Step 2: Convert to fraction form
    111,472.68/153,832.59 = 63,727.32/x
  3. Step 3: Cross multiply
    111,472.68x = 153,832.59 × 63,727.32
  4. Step 4: Simplify right side
    111,472.68x = 9,803,338,689.36
  5. Step 5: Solve for x
    x = 9,803,338,689.36/111,472.68
  6. Step 6: Final answer
    x = 87,943.87

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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.