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Finding the Fourth Proportional to 79,547.50, 109,772.74 and 43,737.26

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Solution

The fourth proportional to 79,547.50, 109,772.74 and 43,737.26 is: 60,355.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,547.50 : 109,772.74 = 43,737.26 : x
  2. Step 2: Convert to fraction form
    79,547.50/109,772.74 = 43,737.26/x
  3. Step 3: Cross multiply
    79,547.50x = 109,772.74 × 43,737.26
  4. Step 4: Simplify right side
    79,547.50x = 4,801,158,870.29
  5. Step 5: Solve for x
    x = 4,801,158,870.29/79,547.50
  6. Step 6: Final answer
    x = 60,355.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.