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Finding the Fourth Proportional to 555,615.18, 833,310.45 and 156,274.38

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Solution

The fourth proportional to 555,615.18, 833,310.45 and 156,274.38 is: 234,379.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,615.18 : 833,310.45 = 156,274.38 : x
  2. Step 2: Convert to fraction form
    555,615.18/833,310.45 = 156,274.38/x
  3. Step 3: Cross multiply
    555,615.18x = 833,310.45 × 156,274.38
  4. Step 4: Simplify right side
    555,615.18x = 130,225,073,921.27
  5. Step 5: Solve for x
    x = 130,225,073,921.27/555,615.18
  6. Step 6: Final answer
    x = 234,379.98

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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.