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Finding the Fourth Proportional to 54,796.40, 82,291.80 and 42,346.70

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Solution

The fourth proportional to 54,796.40, 82,291.80 and 42,346.70 is: 63,595.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,796.40 : 82,291.80 = 42,346.70 : x
  2. Step 2: Convert to fraction form
    54,796.40/82,291.80 = 42,346.70/x
  3. Step 3: Cross multiply
    54,796.40x = 82,291.80 × 42,346.70
  4. Step 4: Simplify right side
    54,796.40x = 3,484,786,167.06
  5. Step 5: Solve for x
    x = 3,484,786,167.06/54,796.40
  6. Step 6: Final answer
    x = 63,595.17

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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.