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Finding the Fourth Proportional to 265,108.16, 397,723.74 and 87,604.40

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Solution

The fourth proportional to 265,108.16, 397,723.74 and 87,604.40 is: 131,426.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,108.16 : 397,723.74 = 87,604.40 : x
  2. Step 2: Convert to fraction form
    265,108.16/397,723.74 = 87,604.40/x
  3. Step 3: Cross multiply
    265,108.16x = 397,723.74 × 87,604.40
  4. Step 4: Simplify right side
    265,108.16x = 34,842,349,608.46
  5. Step 5: Solve for x
    x = 34,842,349,608.46/265,108.16
  6. Step 6: Final answer
    x = 131,426.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.