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Finding the Fourth Proportional to 352,881.80, 486,968.46 and 191,733.20

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Solution

The fourth proportional to 352,881.80, 486,968.46 and 191,733.20 is: 264,587.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,881.80 : 486,968.46 = 191,733.20 : x
  2. Step 2: Convert to fraction form
    352,881.80/486,968.46 = 191,733.20/x
  3. Step 3: Cross multiply
    352,881.80x = 486,968.46 × 191,733.20
  4. Step 4: Simplify right side
    352,881.80x = 93,368,021,134.87
  5. Step 5: Solve for x
    x = 93,368,021,134.87/352,881.80
  6. Step 6: Final answer
    x = 264,587.24

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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.