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Finding the Fourth Proportional to 143,448.96, 215,208.96 and 49,955.52

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Solution

The fourth proportional to 143,448.96, 215,208.96 and 49,955.52 is: 74,945.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,448.96 : 215,208.96 = 49,955.52 : x
  2. Step 2: Convert to fraction form
    143,448.96/215,208.96 = 49,955.52/x
  3. Step 3: Cross multiply
    143,448.96x = 215,208.96 × 49,955.52
  4. Step 4: Simplify right side
    143,448.96x = 10,750,875,505.46
  5. Step 5: Solve for x
    x = 10,750,875,505.46/143,448.96
  6. Step 6: Final answer
    x = 74,945.65

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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.