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Finding the Fourth Proportional to 70,933.17, 106,086.05 and 63,090.75

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Solution

The fourth proportional to 70,933.17, 106,086.05 and 63,090.75 is: 94,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,933.17 : 106,086.05 = 63,090.75 : x
  2. Step 2: Convert to fraction form
    70,933.17/106,086.05 = 63,090.75/x
  3. Step 3: Cross multiply
    70,933.17x = 106,086.05 × 63,090.75
  4. Step 4: Simplify right side
    70,933.17x = 6,693,048,459.04
  5. Step 5: Solve for x
    x = 6,693,048,459.04/70,933.17
  6. Step 6: Final answer
    x = 94,357.10

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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.