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Finding the Fourth Proportional to 117,143.08, 175,713.06 and 28,397.39

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Solution

The fourth proportional to 117,143.08, 175,713.06 and 28,397.39 is: 42,595.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,143.08 : 175,713.06 = 28,397.39 : x
  2. Step 2: Convert to fraction form
    117,143.08/175,713.06 = 28,397.39/x
  3. Step 3: Cross multiply
    117,143.08x = 175,713.06 × 28,397.39
  4. Step 4: Simplify right side
    117,143.08x = 4,989,791,520.84
  5. Step 5: Solve for x
    x = 4,989,791,520.84/117,143.08
  6. Step 6: Final answer
    x = 42,595.70

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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.