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Finding the Fourth Proportional to 556,507.76, 834,796.56 and 157,179.80

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Solution

The fourth proportional to 556,507.76, 834,796.56 and 157,179.80 is: 235,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,507.76 : 834,796.56 = 157,179.80 : x
  2. Step 2: Convert to fraction form
    556,507.76/834,796.56 = 157,179.80/x
  3. Step 3: Cross multiply
    556,507.76x = 834,796.56 × 157,179.80
  4. Step 4: Simplify right side
    556,507.76x = 131,213,156,341.49
  5. Step 5: Solve for x
    x = 131,213,156,341.49/556,507.76
  6. Step 6: Final answer
    x = 235,779.56

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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.