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Finding the Fourth Proportional to 117,254.90, 175,882.35 and 28,507.81

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Solution

The fourth proportional to 117,254.90, 175,882.35 and 28,507.81 is: 42,761.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,254.90 : 175,882.35 = 28,507.81 : x
  2. Step 2: Convert to fraction form
    117,254.90/175,882.35 = 28,507.81/x
  3. Step 3: Cross multiply
    117,254.90x = 175,882.35 × 28,507.81
  4. Step 4: Simplify right side
    117,254.90x = 5,014,020,616.15
  5. Step 5: Solve for x
    x = 5,014,020,616.15/117,254.90
  6. Step 6: Final answer
    x = 42,761.72

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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.