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Finding the Fourth Proportional to 111,645.78, 167,169.96 and 93,931.08

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Solution

The fourth proportional to 111,645.78, 167,169.96 and 93,931.08 is: 140,645.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,645.78 : 167,169.96 = 93,931.08 : x
  2. Step 2: Convert to fraction form
    111,645.78/167,169.96 = 93,931.08/x
  3. Step 3: Cross multiply
    111,645.78x = 167,169.96 × 93,931.08
  4. Step 4: Simplify right side
    111,645.78x = 15,702,454,886.36
  5. Step 5: Solve for x
    x = 15,702,454,886.36/111,645.78
  6. Step 6: Final answer
    x = 140,645.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.