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Finding the Fourth Proportional to 243,688.84, 365,538.27 and 75,209.27

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Solution

The fourth proportional to 243,688.84, 365,538.27 and 75,209.27 is: 112,815.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,688.84 : 365,538.27 = 75,209.27 : x
  2. Step 2: Convert to fraction form
    243,688.84/365,538.27 = 75,209.27/x
  3. Step 3: Cross multiply
    243,688.84x = 365,538.27 × 75,209.27
  4. Step 4: Simplify right side
    243,688.84x = 27,491,865,341.89
  5. Step 5: Solve for x
    x = 27,491,865,341.89/243,688.84
  6. Step 6: Final answer
    x = 112,815.45

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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.