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Finding the Fourth Proportional to 106,600.74, 159,867.09 and 43,420.74

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Solution

The fourth proportional to 106,600.74, 159,867.09 and 43,420.74 is: 65,117.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,600.74 : 159,867.09 = 43,420.74 : x
  2. Step 2: Convert to fraction form
    106,600.74/159,867.09 = 43,420.74/x
  3. Step 3: Cross multiply
    106,600.74x = 159,867.09 × 43,420.74
  4. Step 4: Simplify right side
    106,600.74x = 6,941,547,349.45
  5. Step 5: Solve for x
    x = 6,941,547,349.45/106,600.74
  6. Step 6: Final answer
    x = 65,117.25

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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.