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Finding the Fourth Proportional to 352,705.16, 486,736.62 and 191,561.74

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Solution

The fourth proportional to 352,705.16, 486,736.62 and 191,561.74 is: 264,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,705.16 : 486,736.62 = 191,561.74 : x
  2. Step 2: Convert to fraction form
    352,705.16/486,736.62 = 191,561.74/x
  3. Step 3: Cross multiply
    352,705.16x = 486,736.62 × 191,561.74
  4. Step 4: Simplify right side
    352,705.16x = 93,240,113,848.92
  5. Step 5: Solve for x
    x = 93,240,113,848.92/352,705.16
  6. Step 6: Final answer
    x = 264,357.10

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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.