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Finding the Fourth Proportional to 172,399.57, 237,856.02 and 104,394.80

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Solution

The fourth proportional to 172,399.57, 237,856.02 and 104,394.80 is: 144,031.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,399.57 : 237,856.02 = 104,394.80 : x
  2. Step 2: Convert to fraction form
    172,399.57/237,856.02 = 104,394.80/x
  3. Step 3: Cross multiply
    172,399.57x = 237,856.02 × 104,394.80
  4. Step 4: Simplify right side
    172,399.57x = 24,830,931,636.70
  5. Step 5: Solve for x
    x = 24,830,931,636.70/172,399.57
  6. Step 6: Final answer
    x = 144,031.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.