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Finding the Fourth Proportional to 347,370.86, 520,702.59 and 157,965.68

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Solution

The fourth proportional to 347,370.86, 520,702.59 and 157,965.68 is: 236,787.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,370.86 : 520,702.59 = 157,965.68 : x
  2. Step 2: Convert to fraction form
    347,370.86/520,702.59 = 157,965.68/x
  3. Step 3: Cross multiply
    347,370.86x = 520,702.59 × 157,965.68
  4. Step 4: Simplify right side
    347,370.86x = 82,253,138,707.11
  5. Step 5: Solve for x
    x = 82,253,138,707.11/347,370.86
  6. Step 6: Final answer
    x = 236,787.68

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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.