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Finding the Fourth Proportional to 203,978,426.16, 281,482,037.64 and 111,156,955.68

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Solution

The fourth proportional to 203,978,426.16, 281,482,037.64 and 111,156,955.68 is: 153,392,135.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,978,426.16 : 281,482,037.64 = 111,156,955.68 : x
  2. Step 2: Convert to fraction form
    203,978,426.16/281,482,037.64 = 111,156,955.68/x
  3. Step 3: Cross multiply
    203,978,426.16x = 281,482,037.64 × 111,156,955.68
  4. Step 4: Simplify right side
    203,978,426.16x = 31,288,686,382,665,572
  5. Step 5: Solve for x
    x = 31,288,686,382,665,572/203,978,426.16
  6. Step 6: Final answer
    x = 153,392,135.49

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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.