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Finding the Fourth Proportional to 100,016.00, 138,024.48 and 56,994.57

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Solution

The fourth proportional to 100,016.00, 138,024.48 and 56,994.57 is: 78,653.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,016.00 : 138,024.48 = 56,994.57 : x
  2. Step 2: Convert to fraction form
    100,016.00/138,024.48 = 56,994.57/x
  3. Step 3: Cross multiply
    100,016.00x = 138,024.48 × 56,994.57
  4. Step 4: Simplify right side
    100,016.00x = 7,866,645,602.10
  5. Step 5: Solve for x
    x = 7,866,645,602.10/100,016.00
  6. Step 6: Final answer
    x = 78,653.87

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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.