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Finding the Fourth Proportional to 69,318.63, 103,476.51 and 60,911.10

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Solution

The fourth proportional to 69,318.63, 103,476.51 and 60,911.10 is: 90,926.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,318.63 : 103,476.51 = 60,911.10 : x
  2. Step 2: Convert to fraction form
    69,318.63/103,476.51 = 60,911.10/x
  3. Step 3: Cross multiply
    69,318.63x = 103,476.51 × 60,911.10
  4. Step 4: Simplify right side
    69,318.63x = 6,302,868,048.26
  5. Step 5: Solve for x
    x = 6,302,868,048.26/69,318.63
  6. Step 6: Final answer
    x = 90,926.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.