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Finding the Fourth Proportional to 111,458.80, 153,813.13 and 63,713.18

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Solution

The fourth proportional to 111,458.80, 153,813.13 and 63,713.18 is: 87,924.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,458.80 : 153,813.13 = 63,713.18 : x
  2. Step 2: Convert to fraction form
    111,458.80/153,813.13 = 63,713.18/x
  3. Step 3: Cross multiply
    111,458.80x = 153,813.13 × 63,713.18
  4. Step 4: Simplify right side
    111,458.80x = 9,799,923,638.05
  5. Step 5: Solve for x
    x = 9,799,923,638.05/111,458.80
  6. Step 6: Final answer
    x = 87,924.18

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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.