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Finding the Fourth Proportional to 144,005.73, 216,041.40 and 55,301.01

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Solution

The fourth proportional to 144,005.73, 216,041.40 and 55,301.01 is: 82,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,005.73 : 216,041.40 = 55,301.01 : x
  2. Step 2: Convert to fraction form
    144,005.73/216,041.40 = 55,301.01/x
  3. Step 3: Cross multiply
    144,005.73x = 216,041.40 × 55,301.01
  4. Step 4: Simplify right side
    144,005.73x = 11,947,307,621.81
  5. Step 5: Solve for x
    x = 11,947,307,621.81/144,005.73
  6. Step 6: Final answer
    x = 82,964.11

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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.