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Finding the Fourth Proportional to 353,087.96, 487,264.55 and 191,943.32

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Solution

The fourth proportional to 353,087.96, 487,264.55 and 191,943.32 is: 264,883.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,087.96 : 487,264.55 = 191,943.32 : x
  2. Step 2: Convert to fraction form
    353,087.96/487,264.55 = 191,943.32/x
  3. Step 3: Cross multiply
    353,087.96x = 487,264.55 × 191,943.32
  4. Step 4: Simplify right side
    353,087.96x = 93,527,174,707.00
  5. Step 5: Solve for x
    x = 93,527,174,707.00/353,087.96
  6. Step 6: Final answer
    x = 264,883.50

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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.