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Finding the Fourth Proportional to 173,371.20, 260,056.80 and 143,822.40

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Solution

The fourth proportional to 173,371.20, 260,056.80 and 143,822.40 is: 215,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,371.20 : 260,056.80 = 143,822.40 : x
  2. Step 2: Convert to fraction form
    173,371.20/260,056.80 = 143,822.40/x
  3. Step 3: Cross multiply
    173,371.20x = 260,056.80 × 143,822.40
  4. Step 4: Simplify right side
    173,371.20x = 37,401,993,112.32
  5. Step 5: Solve for x
    x = 37,401,993,112.32/173,371.20
  6. Step 6: Final answer
    x = 215,733.60

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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.