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Finding the Fourth Proportional to 556,385.64, 834,633.36 and 157,029.86

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Solution

The fourth proportional to 556,385.64, 834,633.36 and 157,029.86 is: 235,560.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,385.64 : 834,633.36 = 157,029.86 : x
  2. Step 2: Convert to fraction form
    556,385.64/834,633.36 = 157,029.86/x
  3. Step 3: Cross multiply
    556,385.64x = 834,633.36 × 157,029.86
  4. Step 4: Simplify right side
    556,385.64x = 131,062,355,498.96
  5. Step 5: Solve for x
    x = 131,062,355,498.96/556,385.64
  6. Step 6: Final answer
    x = 235,560.28

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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.