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Finding the Fourth Proportional to 173,363.40, 260,045.10 and 120,219.30

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Solution

The fourth proportional to 173,363.40, 260,045.10 and 120,219.30 is: 180,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,363.40 : 260,045.10 = 120,219.30 : x
  2. Step 2: Convert to fraction form
    173,363.40/260,045.10 = 120,219.30/x
  3. Step 3: Cross multiply
    173,363.40x = 260,045.10 × 120,219.30
  4. Step 4: Simplify right side
    173,363.40x = 31,262,439,890.43
  5. Step 5: Solve for x
    x = 31,262,439,890.43/173,363.40
  6. Step 6: Final answer
    x = 180,328.95

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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.