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Finding the Fourth Proportional to 75,606.84, 104,369.76 and 53,817.30

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Solution

The fourth proportional to 75,606.84, 104,369.76 and 53,817.30 is: 74,290.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,606.84 : 104,369.76 = 53,817.30 : x
  2. Step 2: Convert to fraction form
    75,606.84/104,369.76 = 53,817.30/x
  3. Step 3: Cross multiply
    75,606.84x = 104,369.76 × 53,817.30
  4. Step 4: Simplify right side
    75,606.84x = 5,616,898,684.85
  5. Step 5: Solve for x
    x = 5,616,898,684.85/75,606.84
  6. Step 6: Final answer
    x = 74,290.88

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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.