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Finding the Fourth Proportional to 111,760.68, 154,218.70 and 63,353.06

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Solution

The fourth proportional to 111,760.68, 154,218.70 and 63,353.06 is: 87,420.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,760.68 : 154,218.70 = 63,353.06 : x
  2. Step 2: Convert to fraction form
    111,760.68/154,218.70 = 63,353.06/x
  3. Step 3: Cross multiply
    111,760.68x = 154,218.70 × 63,353.06
  4. Step 4: Simplify right side
    111,760.68x = 9,770,226,607.11
  5. Step 5: Solve for x
    x = 9,770,226,607.11/111,760.68
  6. Step 6: Final answer
    x = 87,420.96

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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.