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Finding the Fourth Proportional to 114,670.68, 158,170.14 and 72,193.56

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Solution

The fourth proportional to 114,670.68, 158,170.14 and 72,193.56 is: 99,579.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,670.68 : 158,170.14 = 72,193.56 : x
  2. Step 2: Convert to fraction form
    114,670.68/158,170.14 = 72,193.56/x
  3. Step 3: Cross multiply
    114,670.68x = 158,170.14 × 72,193.56
  4. Step 4: Simplify right side
    114,670.68x = 11,418,865,492.30
  5. Step 5: Solve for x
    x = 11,418,865,492.30/114,670.68
  6. Step 6: Final answer
    x = 99,579.64

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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.