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Finding the Fourth Proportional to 109,999.69, 151,799.57 and 59,698.69

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Solution

The fourth proportional to 109,999.69, 151,799.57 and 59,698.69 is: 82,384.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,999.69 : 151,799.57 = 59,698.69 : x
  2. Step 2: Convert to fraction form
    109,999.69/151,799.57 = 59,698.69/x
  3. Step 3: Cross multiply
    109,999.69x = 151,799.57 × 59,698.69
  4. Step 4: Simplify right side
    109,999.69x = 9,062,235,017.44
  5. Step 5: Solve for x
    x = 9,062,235,017.44/109,999.69
  6. Step 6: Final answer
    x = 82,384.19

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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.