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Finding the Fourth Proportional to 111,858.18, 154,366.92 and 63,463.38

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Solution

The fourth proportional to 111,858.18, 154,366.92 and 63,463.38 is: 87,580.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,858.18 : 154,366.92 = 63,463.38 : x
  2. Step 2: Convert to fraction form
    111,858.18/154,366.92 = 63,463.38/x
  3. Step 3: Cross multiply
    111,858.18x = 154,366.92 × 63,463.38
  4. Step 4: Simplify right side
    111,858.18x = 9,796,646,503.39
  5. Step 5: Solve for x
    x = 9,796,646,503.39/111,858.18
  6. Step 6: Final answer
    x = 87,580.96

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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.