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Finding the Fourth Proportional to 371,294.50, 556,952.68 and 90,811.76

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Solution

The fourth proportional to 371,294.50, 556,952.68 and 90,811.76 is: 136,220.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,294.50 : 556,952.68 = 90,811.76 : x
  2. Step 2: Convert to fraction form
    371,294.50/556,952.68 = 90,811.76/x
  3. Step 3: Cross multiply
    371,294.50x = 556,952.68 × 90,811.76
  4. Step 4: Simplify right side
    371,294.50x = 50,577,853,107.52
  5. Step 5: Solve for x
    x = 50,577,853,107.52/371,294.50
  6. Step 6: Final answer
    x = 136,220.31

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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.