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Finding the Fourth Proportional to 347,352, 479,345.76 and 196,445.76

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Solution

The fourth proportional to 347,352, 479,345.76 and 196,445.76 is: 271,095.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,352 : 479,345.76 = 196,445.76 : x
  2. Step 2: Convert to fraction form
    347,352/479,345.76 = 196,445.76/x
  3. Step 3: Cross multiply
    347,352x = 479,345.76 × 196,445.76
  4. Step 4: Simplify right side
    347,352x = 94,165,442,125.98
  5. Step 5: Solve for x
    x = 94,165,442,125.98/347,352
  6. Step 6: Final answer
    x = 271,095.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.