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Finding the Fourth Proportional to 143,303.26, 197,848.02 and 92,341.30

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Solution

The fourth proportional to 143,303.26, 197,848.02 and 92,341.30 is: 127,488.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,303.26 : 197,848.02 = 92,341.30 : x
  2. Step 2: Convert to fraction form
    143,303.26/197,848.02 = 92,341.30/x
  3. Step 3: Cross multiply
    143,303.26x = 197,848.02 × 92,341.30
  4. Step 4: Simplify right side
    143,303.26x = 18,269,543,369.23
  5. Step 5: Solve for x
    x = 18,269,543,369.23/143,303.26
  6. Step 6: Final answer
    x = 127,488.68

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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.