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Finding the Fourth Proportional to 173,346.40, 260,043.90 and 68,140.90

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Solution

The fourth proportional to 173,346.40, 260,043.90 and 68,140.90 is: 102,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,346.40 : 260,043.90 = 68,140.90 : x
  2. Step 2: Convert to fraction form
    173,346.40/260,043.90 = 68,140.90/x
  3. Step 3: Cross multiply
    173,346.40x = 260,043.90 × 68,140.90
  4. Step 4: Simplify right side
    173,346.40x = 17,719,625,385.51
  5. Step 5: Solve for x
    x = 17,719,625,385.51/173,346.40
  6. Step 6: Final answer
    x = 102,220.90

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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.