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Finding the Fourth Proportional to 183,445.20, 275,167.80 and 153,920.70

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Solution

The fourth proportional to 183,445.20, 275,167.80 and 153,920.70 is: 230,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,445.20 : 275,167.80 = 153,920.70 : x
  2. Step 2: Convert to fraction form
    183,445.20/275,167.80 = 153,920.70/x
  3. Step 3: Cross multiply
    183,445.20x = 275,167.80 × 153,920.70
  4. Step 4: Simplify right side
    183,445.20x = 42,354,020,393.46
  5. Step 5: Solve for x
    x = 42,354,020,393.46/183,445.20
  6. Step 6: Final answer
    x = 230,881.05

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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.