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Finding the Fourth Proportional to 118,475.52, 176,956.68 and 107,213.40

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Solution

The fourth proportional to 118,475.52, 176,956.68 and 107,213.40 is: 160,135.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,475.52 : 176,956.68 = 107,213.40 : x
  2. Step 2: Convert to fraction form
    118,475.52/176,956.68 = 107,213.40/x
  3. Step 3: Cross multiply
    118,475.52x = 176,956.68 × 107,213.40
  4. Step 4: Simplify right side
    118,475.52x = 18,972,127,315.51
  5. Step 5: Solve for x
    x = 18,972,127,315.51/118,475.52
  6. Step 6: Final answer
    x = 160,135.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.