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Finding the Fourth Proportional to 166,992,368.40, 250,992,437.40 and 144,821,437.20

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Solution

The fourth proportional to 166,992,368.40, 250,992,437.40 and 144,821,437.20 is: 217,669,141.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,992,368.40 : 250,992,437.40 = 144,821,437.20 : x
  2. Step 2: Convert to fraction form
    166,992,368.40/250,992,437.40 = 144,821,437.20/x
  3. Step 3: Cross multiply
    166,992,368.40x = 250,992,437.40 × 144,821,437.20
  4. Step 4: Simplify right side
    166,992,368.40x = 36,349,085,510,599,032
  5. Step 5: Solve for x
    x = 36,349,085,510,599,032/166,992,368.40
  6. Step 6: Final answer
    x = 217,669,141.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.