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Finding the Fourth Proportional to 223,061.58, 306,117.50 and 221,486.94

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Solution

The fourth proportional to 223,061.58, 306,117.50 and 221,486.94 is: 303,956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,061.58 : 306,117.50 = 221,486.94 : x
  2. Step 2: Convert to fraction form
    223,061.58/306,117.50 = 221,486.94/x
  3. Step 3: Cross multiply
    223,061.58x = 306,117.50 × 221,486.94
  4. Step 4: Simplify right side
    223,061.58x = 67,801,028,355.45
  5. Step 5: Solve for x
    x = 67,801,028,355.45/223,061.58
  6. Step 6: Final answer
    x = 303,956.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.