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Finding the Fourth Proportional to 73,547.40, 110,205.90 and 63,640.20

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Solution

The fourth proportional to 73,547.40, 110,205.90 and 63,640.20 is: 95,360.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,547.40 : 110,205.90 = 63,640.20 : x
  2. Step 2: Convert to fraction form
    73,547.40/110,205.90 = 63,640.20/x
  3. Step 3: Cross multiply
    73,547.40x = 110,205.90 × 63,640.20
  4. Step 4: Simplify right side
    73,547.40x = 7,013,525,517.18
  5. Step 5: Solve for x
    x = 7,013,525,517.18/73,547.40
  6. Step 6: Final answer
    x = 95,360.62

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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.