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Finding the Fourth Proportional to 268,751.38, 370,878.24 and 147,889.66

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Solution

The fourth proportional to 268,751.38, 370,878.24 and 147,889.66 is: 204,088.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,751.38 : 370,878.24 = 147,889.66 : x
  2. Step 2: Convert to fraction form
    268,751.38/370,878.24 = 147,889.66/x
  3. Step 3: Cross multiply
    268,751.38x = 370,878.24 × 147,889.66
  4. Step 4: Simplify right side
    268,751.38x = 54,849,056,815.00
  5. Step 5: Solve for x
    x = 54,849,056,815.00/268,751.38
  6. Step 6: Final answer
    x = 204,088.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.