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Finding the Fourth Proportional to 353,088.96, 487,265.94 and 191,944.32

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Solution

The fourth proportional to 353,088.96, 487,265.94 and 191,944.32 is: 264,884.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,088.96 : 487,265.94 = 191,944.32 : x
  2. Step 2: Convert to fraction form
    353,088.96/487,265.94 = 191,944.32/x
  3. Step 3: Cross multiply
    353,088.96x = 487,265.94 × 191,944.32
  4. Step 4: Simplify right side
    353,088.96x = 93,527,928,552.74
  5. Step 5: Solve for x
    x = 93,527,928,552.74/353,088.96
  6. Step 6: Final answer
    x = 264,884.88

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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.