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Finding the Fourth Proportional to 111,236.56, 153,508.90 and 63,488.92

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Solution

The fourth proportional to 111,236.56, 153,508.90 and 63,488.92 is: 87,616.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,236.56 : 153,508.90 = 63,488.92 : x
  2. Step 2: Convert to fraction form
    111,236.56/153,508.90 = 63,488.92/x
  3. Step 3: Cross multiply
    111,236.56x = 153,508.90 × 63,488.92
  4. Step 4: Simplify right side
    111,236.56x = 9,746,114,271.39
  5. Step 5: Solve for x
    x = 9,746,114,271.39/111,236.56
  6. Step 6: Final answer
    x = 87,616.11

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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.