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Finding the Fourth Proportional to 111,271.88, 153,555.14 and 63,524.28

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Solution

The fourth proportional to 111,271.88, 153,555.14 and 63,524.28 is: 87,663.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,271.88 : 153,555.14 = 63,524.28 : x
  2. Step 2: Convert to fraction form
    111,271.88/153,555.14 = 63,524.28/x
  3. Step 3: Cross multiply
    111,271.88x = 153,555.14 × 63,524.28
  4. Step 4: Simplify right side
    111,271.88x = 9,754,479,708.80
  5. Step 5: Solve for x
    x = 9,754,479,708.80/111,271.88
  6. Step 6: Final answer
    x = 87,663.48

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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.