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Finding the Fourth Proportional to 210,825.50, 316,238.25 and 61,065.83

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Solution

The fourth proportional to 210,825.50, 316,238.25 and 61,065.83 is: 91,598.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,825.50 : 316,238.25 = 61,065.83 : x
  2. Step 2: Convert to fraction form
    210,825.50/316,238.25 = 61,065.83/x
  3. Step 3: Cross multiply
    210,825.50x = 316,238.25 × 61,065.83
  4. Step 4: Simplify right side
    210,825.50x = 19,311,352,456.62
  5. Step 5: Solve for x
    x = 19,311,352,456.62/210,825.50
  6. Step 6: Final answer
    x = 91,598.75

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1.5x scale

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.