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Finding the Fourth Proportional to 146,813.20, 220,277.40 and 53,328.40

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Solution

The fourth proportional to 146,813.20, 220,277.40 and 53,328.40 is: 80,013.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,813.20 : 220,277.40 = 53,328.40 : x
  2. Step 2: Convert to fraction form
    146,813.20/220,277.40 = 53,328.40/x
  3. Step 3: Cross multiply
    146,813.20x = 220,277.40 × 53,328.40
  4. Step 4: Simplify right side
    146,813.20x = 11,747,041,298.16
  5. Step 5: Solve for x
    x = 11,747,041,298.16/146,813.20
  6. Step 6: Final answer
    x = 80,013.52

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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.