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Finding the Fourth Proportional to 185,683.76, 278,525.16 and 67,354.88

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Solution

The fourth proportional to 185,683.76, 278,525.16 and 67,354.88 is: 101,032.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,683.76 : 278,525.16 = 67,354.88 : x
  2. Step 2: Convert to fraction form
    185,683.76/278,525.16 = 67,354.88/x
  3. Step 3: Cross multiply
    185,683.76x = 278,525.16 × 67,354.88
  4. Step 4: Simplify right side
    185,683.76x = 18,760,028,728.78
  5. Step 5: Solve for x
    x = 18,760,028,728.78/185,683.76
  6. Step 6: Final answer
    x = 101,032.15

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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.