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Finding the Fourth Proportional to 194,145, 291,217.26 and 61,036.88

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Solution

The fourth proportional to 194,145, 291,217.26 and 61,036.88 is: 91,555.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,145 : 291,217.26 = 61,036.88 : x
  2. Step 2: Convert to fraction form
    194,145/291,217.26 = 61,036.88/x
  3. Step 3: Cross multiply
    194,145x = 291,217.26 × 61,036.88
  4. Step 4: Simplify right side
    194,145x = 17,774,992,952.55
  5. Step 5: Solve for x
    x = 17,774,992,952.55/194,145
  6. Step 6: Final answer
    x = 91,555.24

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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.