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Finding the Fourth Proportional to 113,657.88, 170,389.62 and 43,587.48

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Solution

The fourth proportional to 113,657.88, 170,389.62 and 43,587.48 is: 65,343.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,657.88 : 170,389.62 = 43,587.48 : x
  2. Step 2: Convert to fraction form
    113,657.88/170,389.62 = 43,587.48/x
  3. Step 3: Cross multiply
    113,657.88x = 170,389.62 × 43,587.48
  4. Step 4: Simplify right side
    113,657.88x = 7,426,854,153.96
  5. Step 5: Solve for x
    x = 7,426,854,153.96/113,657.88
  6. Step 6: Final answer
    x = 65,343.94

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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.