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Finding the Fourth Proportional to 117,500.84, 162,235.44 and 72,239.56

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Solution

The fourth proportional to 117,500.84, 162,235.44 and 72,239.56 is: 99,742.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,500.84 : 162,235.44 = 72,239.56 : x
  2. Step 2: Convert to fraction form
    117,500.84/162,235.44 = 72,239.56/x
  3. Step 3: Cross multiply
    117,500.84x = 162,235.44 × 72,239.56
  4. Step 4: Simplify right side
    117,500.84x = 11,719,816,802.01
  5. Step 5: Solve for x
    x = 11,719,816,802.01/117,500.84
  6. Step 6: Final answer
    x = 99,742.41

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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.