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Finding the Fourth Proportional to 273,143.55, 409,710.45 and 104,618.19

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Solution

The fourth proportional to 273,143.55, 409,710.45 and 104,618.19 is: 156,925.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,143.55 : 409,710.45 = 104,618.19 : x
  2. Step 2: Convert to fraction form
    273,143.55/409,710.45 = 104,618.19/x
  3. Step 3: Cross multiply
    273,143.55x = 409,710.45 × 104,618.19
  4. Step 4: Simplify right side
    273,143.55x = 42,863,165,703.09
  5. Step 5: Solve for x
    x = 42,863,165,703.09/273,143.55
  6. Step 6: Final answer
    x = 156,925.42

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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.