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Finding the Fourth Proportional to 219,086.92, 302,353.95 and 123,558.76

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Solution

The fourth proportional to 219,086.92, 302,353.95 and 123,558.76 is: 170,518.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,086.92 : 302,353.95 = 123,558.76 : x
  2. Step 2: Convert to fraction form
    219,086.92/302,353.95 = 123,558.76/x
  3. Step 3: Cross multiply
    219,086.92x = 302,353.95 × 123,558.76
  4. Step 4: Simplify right side
    219,086.92x = 37,358,479,143.10
  5. Step 5: Solve for x
    x = 37,358,479,143.10/219,086.92
  6. Step 6: Final answer
    x = 170,518.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.