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Finding the Fourth Proportional to 58,968.88, 81,375.12 and 35,090.08

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Solution

The fourth proportional to 58,968.88, 81,375.12 and 35,090.08 is: 48,423.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,968.88 : 81,375.12 = 35,090.08 : x
  2. Step 2: Convert to fraction form
    58,968.88/81,375.12 = 35,090.08/x
  3. Step 3: Cross multiply
    58,968.88x = 81,375.12 × 35,090.08
  4. Step 4: Simplify right side
    58,968.88x = 2,855,459,470.81
  5. Step 5: Solve for x
    x = 2,855,459,470.81/58,968.88
  6. Step 6: Final answer
    x = 48,423.16

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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.