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Finding the Fourth Proportional to 139,216.59, 192,119.04 and 75,554.64

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Solution

The fourth proportional to 139,216.59, 192,119.04 and 75,554.64 is: 104,265.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,216.59 : 192,119.04 = 75,554.64 : x
  2. Step 2: Convert to fraction form
    139,216.59/192,119.04 = 75,554.64/x
  3. Step 3: Cross multiply
    139,216.59x = 192,119.04 × 75,554.64
  4. Step 4: Simplify right side
    139,216.59x = 14,515,484,904.35
  5. Step 5: Solve for x
    x = 14,515,484,904.35/139,216.59
  6. Step 6: Final answer
    x = 104,265.48

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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.