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Finding the Fourth Proportional to 111,626.80, 154,001.40 and 63,854.64

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Solution

The fourth proportional to 111,626.80, 154,001.40 and 63,854.64 is: 88,094.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,626.80 : 154,001.40 = 63,854.64 : x
  2. Step 2: Convert to fraction form
    111,626.80/154,001.40 = 63,854.64/x
  3. Step 3: Cross multiply
    111,626.80x = 154,001.40 × 63,854.64
  4. Step 4: Simplify right side
    111,626.80x = 9,833,703,956.50
  5. Step 5: Solve for x
    x = 9,833,703,956.50/111,626.80
  6. Step 6: Final answer
    x = 88,094.47

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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.