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Finding the Fourth Proportional to 94,657.80, 141,691.36 and 69,726

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Solution

The fourth proportional to 94,657.80, 141,691.36 and 69,726 is: 104,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,657.80 : 141,691.36 = 69,726 : x
  2. Step 2: Convert to fraction form
    94,657.80/141,691.36 = 69,726/x
  3. Step 3: Cross multiply
    94,657.80x = 141,691.36 × 69,726
  4. Step 4: Simplify right side
    94,657.80x = 9,879,571,767.36
  5. Step 5: Solve for x
    x = 9,879,571,767.36/94,657.80
  6. Step 6: Final answer
    x = 104,371.45

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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.