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Finding the Fourth Proportional to 345,298.92, 518,432.98 and 176,940.22

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Solution

The fourth proportional to 345,298.92, 518,432.98 and 176,940.22 is: 265,658.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,298.92 : 518,432.98 = 176,940.22 : x
  2. Step 2: Convert to fraction form
    345,298.92/518,432.98 = 176,940.22/x
  3. Step 3: Cross multiply
    345,298.92x = 518,432.98 × 176,940.22
  4. Step 4: Simplify right side
    345,298.92x = 91,731,645,536.46
  5. Step 5: Solve for x
    x = 91,731,645,536.46/345,298.92
  6. Step 6: Final answer
    x = 265,658.65

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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.