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Finding the Fourth Proportional to 173,347.70, 260,021.55 and 84,658.10

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Solution

The fourth proportional to 173,347.70, 260,021.55 and 84,658.10 is: 126,987.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,347.70 : 260,021.55 = 84,658.10 : x
  2. Step 2: Convert to fraction form
    173,347.70/260,021.55 = 84,658.10/x
  3. Step 3: Cross multiply
    173,347.70x = 260,021.55 × 84,658.10
  4. Step 4: Simplify right side
    173,347.70x = 22,012,930,382.06
  5. Step 5: Solve for x
    x = 22,012,930,382.06/173,347.70
  6. Step 6: Final answer
    x = 126,987.15

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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.