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Finding the Fourth Proportional to 605,539.79, 908,305.13 and 156,222.46

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Solution

The fourth proportional to 605,539.79, 908,305.13 and 156,222.46 is: 234,332.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,539.79 : 908,305.13 = 156,222.46 : x
  2. Step 2: Convert to fraction form
    605,539.79/908,305.13 = 156,222.46/x
  3. Step 3: Cross multiply
    605,539.79x = 908,305.13 × 156,222.46
  4. Step 4: Simplify right side
    605,539.79x = 141,897,662,486.41
  5. Step 5: Solve for x
    x = 141,897,662,486.41/605,539.79
  6. Step 6: Final answer
    x = 234,332.52

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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.