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Finding the Fourth Proportional to 101,816.14, 140,008.02 and 88,364.03

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Solution

The fourth proportional to 101,816.14, 140,008.02 and 88,364.03 is: 121,509.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,816.14 : 140,008.02 = 88,364.03 : x
  2. Step 2: Convert to fraction form
    101,816.14/140,008.02 = 88,364.03/x
  3. Step 3: Cross multiply
    101,816.14x = 140,008.02 × 88,364.03
  4. Step 4: Simplify right side
    101,816.14x = 12,371,672,879.52
  5. Step 5: Solve for x
    x = 12,371,672,879.52/101,816.14
  6. Step 6: Final answer
    x = 121,509.94

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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.