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Finding the Fourth Proportional to 248,509.92, 372,776.40 and 71,042.16

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Solution

The fourth proportional to 248,509.92, 372,776.40 and 71,042.16 is: 106,566.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,509.92 : 372,776.40 = 71,042.16 : x
  2. Step 2: Convert to fraction form
    248,509.92/372,776.40 = 71,042.16/x
  3. Step 3: Cross multiply
    248,509.92x = 372,776.40 × 71,042.16
  4. Step 4: Simplify right side
    248,509.92x = 26,482,840,653.02
  5. Step 5: Solve for x
    x = 26,482,840,653.02/248,509.92
  6. Step 6: Final answer
    x = 106,566.53

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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.