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Finding the Fourth Proportional to 173,430.60, 260,091.90 and 68,281.80

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Solution

The fourth proportional to 173,430.60, 260,091.90 and 68,281.80 is: 102,401.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,430.60 : 260,091.90 = 68,281.80 : x
  2. Step 2: Convert to fraction form
    173,430.60/260,091.90 = 68,281.80/x
  3. Step 3: Cross multiply
    173,430.60x = 260,091.90 × 68,281.80
  4. Step 4: Simplify right side
    173,430.60x = 17,759,543,097.42
  5. Step 5: Solve for x
    x = 17,759,543,097.42/173,430.60
  6. Step 6: Final answer
    x = 102,401.44

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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.