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Finding the Fourth Proportional to 104,235.14, 143,844.62 and 56,488.49

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Solution

The fourth proportional to 104,235.14, 143,844.62 and 56,488.49 is: 77,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,235.14 : 143,844.62 = 56,488.49 : x
  2. Step 2: Convert to fraction form
    104,235.14/143,844.62 = 56,488.49/x
  3. Step 3: Cross multiply
    104,235.14x = 143,844.62 × 56,488.49
  4. Step 4: Simplify right side
    104,235.14x = 8,125,564,376.76
  5. Step 5: Solve for x
    x = 8,125,564,376.76/104,235.14
  6. Step 6: Final answer
    x = 77,954.18

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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.