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Finding the Fourth Proportional to 115,818.40, 174,098.80 and 107,600.80

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Solution

The fourth proportional to 115,818.40, 174,098.80 and 107,600.80 is: 161,746.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,818.40 : 174,098.80 = 107,600.80 : x
  2. Step 2: Convert to fraction form
    115,818.40/174,098.80 = 107,600.80/x
  3. Step 3: Cross multiply
    115,818.40x = 174,098.80 × 107,600.80
  4. Step 4: Simplify right side
    115,818.40x = 18,733,170,159.04
  5. Step 5: Solve for x
    x = 18,733,170,159.04/115,818.40
  6. Step 6: Final answer
    x = 161,746.06

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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.