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Finding the Fourth Proportional to 69,795.84, 104,526.56 and 38,158.40

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Solution

The fourth proportional to 69,795.84, 104,526.56 and 38,158.40 is: 57,146.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,795.84 : 104,526.56 = 38,158.40 : x
  2. Step 2: Convert to fraction form
    69,795.84/104,526.56 = 38,158.40/x
  3. Step 3: Cross multiply
    69,795.84x = 104,526.56 × 38,158.40
  4. Step 4: Simplify right side
    69,795.84x = 3,988,566,287.10
  5. Step 5: Solve for x
    x = 3,988,566,287.10/69,795.84
  6. Step 6: Final answer
    x = 57,146.19

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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.