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Finding the Fourth Proportional to 104,235.42, 143,844.66 and 56,489.94

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Solution

The fourth proportional to 104,235.42, 143,844.66 and 56,489.94 is: 77,956.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,235.42 : 143,844.66 = 56,489.94 : x
  2. Step 2: Convert to fraction form
    104,235.42/143,844.66 = 56,489.94/x
  3. Step 3: Cross multiply
    104,235.42x = 143,844.66 × 56,489.94
  4. Step 4: Simplify right side
    104,235.42x = 8,125,776,212.72
  5. Step 5: Solve for x
    x = 8,125,776,212.72/104,235.42
  6. Step 6: Final answer
    x = 77,956.00

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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.