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Finding the Fourth Proportional to 154,491.60, 216,754.80 and 154,491.60

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Solution

The fourth proportional to 154,491.60, 216,754.80 and 154,491.60 is: 216,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,491.60 : 216,754.80 = 154,491.60 : x
  2. Step 2: Convert to fraction form
    154,491.60/216,754.80 = 154,491.60/x
  3. Step 3: Cross multiply
    154,491.60x = 216,754.80 × 154,491.60
  4. Step 4: Simplify right side
    154,491.60x = 33,486,795,859.68
  5. Step 5: Solve for x
    x = 33,486,795,859.68/154,491.60
  6. Step 6: Final answer
    x = 216,754.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.