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Finding the Fourth Proportional to 273,903.10, 410,854.65 and 86,914.30

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Solution

The fourth proportional to 273,903.10, 410,854.65 and 86,914.30 is: 130,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,903.10 : 410,854.65 = 86,914.30 : x
  2. Step 2: Convert to fraction form
    273,903.10/410,854.65 = 86,914.30/x
  3. Step 3: Cross multiply
    273,903.10x = 410,854.65 × 86,914.30
  4. Step 4: Simplify right side
    273,903.10x = 35,709,144,306.50
  5. Step 5: Solve for x
    x = 35,709,144,306.50/273,903.10
  6. Step 6: Final answer
    x = 130,371.45

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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.