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Finding the Fourth Proportional to 352,853.30, 486,929.13 and 191,704.70

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Solution

The fourth proportional to 352,853.30, 486,929.13 and 191,704.70 is: 264,547.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,853.30 : 486,929.13 = 191,704.70 : x
  2. Step 2: Convert to fraction form
    352,853.30/486,929.13 = 191,704.70/x
  3. Step 3: Cross multiply
    352,853.30x = 486,929.13 × 191,704.70
  4. Step 4: Simplify right side
    352,853.30x = 93,346,602,787.91
  5. Step 5: Solve for x
    x = 93,346,602,787.91/352,853.30
  6. Step 6: Final answer
    x = 264,547.91

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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.