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Finding the Fourth Proportional to 101,244.75, 139,717.76 and 56,532.75

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Solution

The fourth proportional to 101,244.75, 139,717.76 and 56,532.75 is: 78,015.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,244.75 : 139,717.76 = 56,532.75 : x
  2. Step 2: Convert to fraction form
    101,244.75/139,717.76 = 56,532.75/x
  3. Step 3: Cross multiply
    101,244.75x = 139,717.76 × 56,532.75
  4. Step 4: Simplify right side
    101,244.75x = 7,898,628,913.98
  5. Step 5: Solve for x
    x = 7,898,628,913.98/101,244.75
  6. Step 6: Final answer
    x = 78,015.20

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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.