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Finding the Fourth Proportional to 352,552.95, 486,523.40 and 191,407.91

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Solution

The fourth proportional to 352,552.95, 486,523.40 and 191,407.91 is: 264,143.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,552.95 : 486,523.40 = 191,407.91 : x
  2. Step 2: Convert to fraction form
    352,552.95/486,523.40 = 191,407.91/x
  3. Step 3: Cross multiply
    352,552.95x = 486,523.40 × 191,407.91
  4. Step 4: Simplify right side
    352,552.95x = 93,124,423,770.44
  5. Step 5: Solve for x
    x = 93,124,423,770.44/352,552.95
  6. Step 6: Final answer
    x = 264,143.08

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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.