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Finding the Fourth Proportional to 360,541.98, 540,774.05 and 120,628.71

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Solution

The fourth proportional to 360,541.98, 540,774.05 and 120,628.71 is: 180,930.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,541.98 : 540,774.05 = 120,628.71 : x
  2. Step 2: Convert to fraction form
    360,541.98/540,774.05 = 120,628.71/x
  3. Step 3: Cross multiply
    360,541.98x = 540,774.05 × 120,628.71
  4. Step 4: Simplify right side
    360,541.98x = 65,232,875,449.83
  5. Step 5: Solve for x
    x = 65,232,875,449.83/360,541.98
  6. Step 6: Final answer
    x = 180,930.04

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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.