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Finding the Fourth Proportional to 368,993.04, 553,119.72 and 144,044.16

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Solution

The fourth proportional to 368,993.04, 553,119.72 and 144,044.16 is: 215,921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,993.04 : 553,119.72 = 144,044.16 : x
  2. Step 2: Convert to fraction form
    368,993.04/553,119.72 = 144,044.16/x
  3. Step 3: Cross multiply
    368,993.04x = 553,119.72 × 144,044.16
  4. Step 4: Simplify right side
    368,993.04x = 79,673,665,446.84
  5. Step 5: Solve for x
    x = 79,673,665,446.84/368,993.04
  6. Step 6: Final answer
    x = 215,921.87

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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.