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Finding the Fourth Proportional to 145,019.64, 217,539.82 and 60,694.94

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Solution

The fourth proportional to 145,019.64, 217,539.82 and 60,694.94 is: 91,046.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,019.64 : 217,539.82 = 60,694.94 : x
  2. Step 2: Convert to fraction form
    145,019.64/217,539.82 = 60,694.94/x
  3. Step 3: Cross multiply
    145,019.64x = 217,539.82 × 60,694.94
  4. Step 4: Simplify right side
    145,019.64x = 13,203,566,322.51
  5. Step 5: Solve for x
    x = 13,203,566,322.51/145,019.64
  6. Step 6: Final answer
    x = 91,046.75

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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.