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Finding the Fourth Proportional to 352,812.16, 486,881.58 and 191,665.90

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Solution

The fourth proportional to 352,812.16, 486,881.58 and 191,665.90 is: 264,499.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,812.16 : 486,881.58 = 191,665.90 : x
  2. Step 2: Convert to fraction form
    352,812.16/486,881.58 = 191,665.90/x
  3. Step 3: Cross multiply
    352,812.16x = 486,881.58 × 191,665.90
  4. Step 4: Simplify right side
    352,812.16x = 93,318,596,224.12
  5. Step 5: Solve for x
    x = 93,318,596,224.12/352,812.16
  6. Step 6: Final answer
    x = 264,499.38

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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.