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Finding the Fourth Proportional to 68,347.52, 94,301.79 and 40,038.02

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Solution

The fourth proportional to 68,347.52, 94,301.79 and 40,038.02 is: 55,242.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,347.52 : 94,301.79 = 40,038.02 : x
  2. Step 2: Convert to fraction form
    68,347.52/94,301.79 = 40,038.02/x
  3. Step 3: Cross multiply
    68,347.52x = 94,301.79 × 40,038.02
  4. Step 4: Simplify right side
    68,347.52x = 3,775,656,954.06
  5. Step 5: Solve for x
    x = 3,775,656,954.06/68,347.52
  6. Step 6: Final answer
    x = 55,242.05

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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.