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Finding the Fourth Proportional to 111,772.65, 154,233.32 and 64,023.15

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Solution

The fourth proportional to 111,772.65, 154,233.32 and 64,023.15 is: 88,344.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,772.65 : 154,233.32 = 64,023.15 : x
  2. Step 2: Convert to fraction form
    111,772.65/154,233.32 = 64,023.15/x
  3. Step 3: Cross multiply
    111,772.65x = 154,233.32 × 64,023.15
  4. Step 4: Simplify right side
    111,772.65x = 9,874,502,981.36
  5. Step 5: Solve for x
    x = 9,874,502,981.36/111,772.65
  6. Step 6: Final answer
    x = 88,344.54

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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.