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Finding the Fourth Proportional to 144,328.80, 216,752.40 and 104,930.40

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Solution

The fourth proportional to 144,328.80, 216,752.40 and 104,930.40 is: 157,584.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,328.80 : 216,752.40 = 104,930.40 : x
  2. Step 2: Convert to fraction form
    144,328.80/216,752.40 = 104,930.40/x
  3. Step 3: Cross multiply
    144,328.80x = 216,752.40 × 104,930.40
  4. Step 4: Simplify right side
    144,328.80x = 22,743,916,032.96
  5. Step 5: Solve for x
    x = 22,743,916,032.96/144,328.80
  6. Step 6: Final answer
    x = 157,584.04

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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.