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Finding the Fourth Proportional to 144,616.70, 216,957.45 and 55,862.30

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Solution

The fourth proportional to 144,616.70, 216,957.45 and 55,862.30 is: 83,805.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,616.70 : 216,957.45 = 55,862.30 : x
  2. Step 2: Convert to fraction form
    144,616.70/216,957.45 = 55,862.30/x
  3. Step 3: Cross multiply
    144,616.70x = 216,957.45 × 55,862.30
  4. Step 4: Simplify right side
    144,616.70x = 12,119,742,159.14
  5. Step 5: Solve for x
    x = 12,119,742,159.14/144,616.70
  6. Step 6: Final answer
    x = 83,805.97

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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.