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Finding the Fourth Proportional to 353,007.16, 487,153.15 and 191,862.61

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Solution

The fourth proportional to 353,007.16, 487,153.15 and 191,862.61 is: 264,772.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,007.16 : 487,153.15 = 191,862.61 : x
  2. Step 2: Convert to fraction form
    353,007.16/487,153.15 = 191,862.61/x
  3. Step 3: Cross multiply
    353,007.16x = 487,153.15 × 191,862.61
  4. Step 4: Simplify right side
    353,007.16x = 93,466,473,131.18
  5. Step 5: Solve for x
    x = 93,466,473,131.18/353,007.16
  6. Step 6: Final answer
    x = 264,772.18

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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.