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Finding the Fourth Proportional to 111,967.22, 154,507.74 and 61,666.22

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Solution

The fourth proportional to 111,967.22, 154,507.74 and 61,666.22 is: 85,095.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,967.22 : 154,507.74 = 61,666.22 : x
  2. Step 2: Convert to fraction form
    111,967.22/154,507.74 = 61,666.22/x
  3. Step 3: Cross multiply
    111,967.22x = 154,507.74 × 61,666.22
  4. Step 4: Simplify right side
    111,967.22x = 9,527,908,286.54
  5. Step 5: Solve for x
    x = 9,527,908,286.54/111,967.22
  6. Step 6: Final answer
    x = 85,095.52

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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.