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Finding the Fourth Proportional to 157,956.84, 236,976.80 and 56,765.11

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Solution

The fourth proportional to 157,956.84, 236,976.80 and 56,765.11 is: 85,162.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,956.84 : 236,976.80 = 56,765.11 : x
  2. Step 2: Convert to fraction form
    157,956.84/236,976.80 = 56,765.11/x
  3. Step 3: Cross multiply
    157,956.84x = 236,976.80 × 56,765.11
  4. Step 4: Simplify right side
    157,956.84x = 13,452,014,119.45
  5. Step 5: Solve for x
    x = 13,452,014,119.45/157,956.84
  6. Step 6: Final answer
    x = 85,162.59

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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.