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Finding the Fourth Proportional to 173,888.20, 261,149.10 and 103,904.20

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Solution

The fourth proportional to 173,888.20, 261,149.10 and 103,904.20 is: 156,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,888.20 : 261,149.10 = 103,904.20 : x
  2. Step 2: Convert to fraction form
    173,888.20/261,149.10 = 103,904.20/x
  3. Step 3: Cross multiply
    173,888.20x = 261,149.10 × 103,904.20
  4. Step 4: Simplify right side
    173,888.20x = 27,134,488,316.22
  5. Step 5: Solve for x
    x = 27,134,488,316.22/173,888.20
  6. Step 6: Final answer
    x = 156,045.60

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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.