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Finding the Fourth Proportional to 173,898.90, 260,848.35 and 68,663.70

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Solution

The fourth proportional to 173,898.90, 260,848.35 and 68,663.70 is: 102,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,898.90 : 260,848.35 = 68,663.70 : x
  2. Step 2: Convert to fraction form
    173,898.90/260,848.35 = 68,663.70/x
  3. Step 3: Cross multiply
    173,898.90x = 260,848.35 × 68,663.70
  4. Step 4: Simplify right side
    173,898.90x = 17,910,812,849.90
  5. Step 5: Solve for x
    x = 17,910,812,849.90/173,898.90
  6. Step 6: Final answer
    x = 102,995.55

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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.