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Finding the Fourth Proportional to 74,159.03, 111,189.39 and 40,895.03

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Solution

The fourth proportional to 74,159.03, 111,189.39 and 40,895.03 is: 61,315.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,159.03 : 111,189.39 = 40,895.03 : x
  2. Step 2: Convert to fraction form
    74,159.03/111,189.39 = 40,895.03/x
  3. Step 3: Cross multiply
    74,159.03x = 111,189.39 × 40,895.03
  4. Step 4: Simplify right side
    74,159.03x = 4,547,092,883.78
  5. Step 5: Solve for x
    x = 4,547,092,883.78/74,159.03
  6. Step 6: Final answer
    x = 61,315.44

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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.