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Finding the Fourth Proportional to 217,123.58, 325,709.45 and 74,952.77

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Solution

The fourth proportional to 217,123.58, 325,709.45 and 74,952.77 is: 112,437.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,123.58 : 325,709.45 = 74,952.77 : x
  2. Step 2: Convert to fraction form
    217,123.58/325,709.45 = 74,952.77/x
  3. Step 3: Cross multiply
    217,123.58x = 325,709.45 × 74,952.77
  4. Step 4: Simplify right side
    217,123.58x = 24,412,823,489.37
  5. Step 5: Solve for x
    x = 24,412,823,489.37/217,123.58
  6. Step 6: Final answer
    x = 112,437.46

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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.