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Finding the Fourth Proportional to 111,416.15, 167,041.12 and 67,032.58

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Solution

The fourth proportional to 111,416.15, 167,041.12 and 67,032.58 is: 100,498.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,416.15 : 167,041.12 = 67,032.58 : x
  2. Step 2: Convert to fraction form
    111,416.15/167,041.12 = 67,032.58/x
  3. Step 3: Cross multiply
    111,416.15x = 167,041.12 × 67,032.58
  4. Step 4: Simplify right side
    111,416.15x = 11,197,196,671.48
  5. Step 5: Solve for x
    x = 11,197,196,671.48/111,416.15
  6. Step 6: Final answer
    x = 100,498.87

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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.