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Finding the Fourth Proportional to 100,597.44, 138,814.92 and 60,303.72

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Solution

The fourth proportional to 100,597.44, 138,814.92 and 60,303.72 is: 83,213.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,597.44 : 138,814.92 = 60,303.72 : x
  2. Step 2: Convert to fraction form
    100,597.44/138,814.92 = 60,303.72/x
  3. Step 3: Cross multiply
    100,597.44x = 138,814.92 × 60,303.72
  4. Step 4: Simplify right side
    100,597.44x = 8,371,056,067.50
  5. Step 5: Solve for x
    x = 8,371,056,067.50/100,597.44
  6. Step 6: Final answer
    x = 83,213.41

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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.