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Finding the Fourth Proportional to 157,475.34, 236,311.43 and 63,981.09

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Solution

The fourth proportional to 157,475.34, 236,311.43 and 63,981.09 is: 96,011.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,475.34 : 236,311.43 = 63,981.09 : x
  2. Step 2: Convert to fraction form
    157,475.34/236,311.43 = 63,981.09/x
  3. Step 3: Cross multiply
    157,475.34x = 236,311.43 × 63,981.09
  4. Step 4: Simplify right side
    157,475.34x = 15,119,462,550.95
  5. Step 5: Solve for x
    x = 15,119,462,550.95/157,475.34
  6. Step 6: Final answer
    x = 96,011.62

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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.