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Finding the Fourth Proportional to 434,139.60, 651,306.60 and 167,876.40

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Solution

The fourth proportional to 434,139.60, 651,306.60 and 167,876.40 is: 251,852.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,139.60 : 651,306.60 = 167,876.40 : x
  2. Step 2: Convert to fraction form
    434,139.60/651,306.60 = 167,876.40/x
  3. Step 3: Cross multiply
    434,139.60x = 651,306.60 × 167,876.40
  4. Step 4: Simplify right side
    434,139.60x = 109,339,007,304.24
  5. Step 5: Solve for x
    x = 109,339,007,304.24/434,139.60
  6. Step 6: Final answer
    x = 251,852.19

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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.