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Finding the Fourth Proportional to 173,330.90, 260,020.65 and 68,125.40

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Solution

The fourth proportional to 173,330.90, 260,020.65 and 68,125.40 is: 102,197.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,330.90 : 260,020.65 = 68,125.40 : x
  2. Step 2: Convert to fraction form
    173,330.90/260,020.65 = 68,125.40/x
  3. Step 3: Cross multiply
    173,330.90x = 260,020.65 × 68,125.40
  4. Step 4: Simplify right side
    173,330.90x = 17,714,010,789.51
  5. Step 5: Solve for x
    x = 17,714,010,789.51/173,330.90
  6. Step 6: Final answer
    x = 102,197.65

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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.