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Finding the Fourth Proportional to 294,707.60, 442,061.40 and 107,694.80

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Solution

The fourth proportional to 294,707.60, 442,061.40 and 107,694.80 is: 161,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,707.60 : 442,061.40 = 107,694.80 : x
  2. Step 2: Convert to fraction form
    294,707.60/442,061.40 = 107,694.80/x
  3. Step 3: Cross multiply
    294,707.60x = 442,061.40 × 107,694.80
  4. Step 4: Simplify right side
    294,707.60x = 47,607,714,060.72
  5. Step 5: Solve for x
    x = 47,607,714,060.72/294,707.60
  6. Step 6: Final answer
    x = 161,542.20

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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.