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Finding the Fourth Proportional to 451,031.64, 676,587.42 and 118,607.64

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Solution

The fourth proportional to 451,031.64, 676,587.42 and 118,607.64 is: 177,921.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,031.64 : 676,587.42 = 118,607.64 : x
  2. Step 2: Convert to fraction form
    451,031.64/676,587.42 = 118,607.64/x
  3. Step 3: Cross multiply
    451,031.64x = 676,587.42 × 118,607.64
  4. Step 4: Simplify right side
    451,031.64x = 80,248,437,139.89
  5. Step 5: Solve for x
    x = 80,248,437,139.89/451,031.64
  6. Step 6: Final answer
    x = 177,921.97

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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.