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Finding the Fourth Proportional to 148,881.70, 223,387.35 and 75,009.70

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Solution

The fourth proportional to 148,881.70, 223,387.35 and 75,009.70 is: 112,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,881.70 : 223,387.35 = 75,009.70 : x
  2. Step 2: Convert to fraction form
    148,881.70/223,387.35 = 75,009.70/x
  3. Step 3: Cross multiply
    148,881.70x = 223,387.35 × 75,009.70
  4. Step 4: Simplify right side
    148,881.70x = 16,756,218,107.30
  5. Step 5: Solve for x
    x = 16,756,218,107.30/148,881.70
  6. Step 6: Final answer
    x = 112,547.20

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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.