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Finding the Fourth Proportional to 158,139.64, 218,197.02 and 94,465

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Solution

The fourth proportional to 158,139.64, 218,197.02 and 94,465 is: 130,340.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,139.64 : 218,197.02 = 94,465 : x
  2. Step 2: Convert to fraction form
    158,139.64/218,197.02 = 94,465/x
  3. Step 3: Cross multiply
    158,139.64x = 218,197.02 × 94,465
  4. Step 4: Simplify right side
    158,139.64x = 20,611,981,494.30
  5. Step 5: Solve for x
    x = 20,611,981,494.30/158,139.64
  6. Step 6: Final answer
    x = 130,340.38

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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.