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Finding the Fourth Proportional to 268,702.64, 370,809.60 and 147,841.28

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Solution

The fourth proportional to 268,702.64, 370,809.60 and 147,841.28 is: 204,020.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,702.64 : 370,809.60 = 147,841.28 : x
  2. Step 2: Convert to fraction form
    268,702.64/370,809.60 = 147,841.28/x
  3. Step 3: Cross multiply
    268,702.64x = 370,809.60 × 147,841.28
  4. Step 4: Simplify right side
    268,702.64x = 54,820,965,900.29
  5. Step 5: Solve for x
    x = 54,820,965,900.29/268,702.64
  6. Step 6: Final answer
    x = 204,020.94

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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.