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Finding the Fourth Proportional to 147,119.40, 220,699.08 and 47,246.40

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Solution

The fourth proportional to 147,119.40, 220,699.08 and 47,246.40 is: 70,876.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,119.40 : 220,699.08 = 47,246.40 : x
  2. Step 2: Convert to fraction form
    147,119.40/220,699.08 = 47,246.40/x
  3. Step 3: Cross multiply
    147,119.40x = 220,699.08 × 47,246.40
  4. Step 4: Simplify right side
    147,119.40x = 10,427,237,013.31
  5. Step 5: Solve for x
    x = 10,427,237,013.31/147,119.40
  6. Step 6: Final answer
    x = 70,876.02

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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.