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Finding the Fourth Proportional to 212,761.58, 319,143.42 and 63,004.70

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Solution

The fourth proportional to 212,761.58, 319,143.42 and 63,004.70 is: 94,507.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,761.58 : 319,143.42 = 63,004.70 : x
  2. Step 2: Convert to fraction form
    212,761.58/319,143.42 = 63,004.70/x
  3. Step 3: Cross multiply
    212,761.58x = 319,143.42 × 63,004.70
  4. Step 4: Simplify right side
    212,761.58x = 20,107,535,434.07
  5. Step 5: Solve for x
    x = 20,107,535,434.07/212,761.58
  6. Step 6: Final answer
    x = 94,507.36

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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.