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Finding the Fourth Proportional to 104,160.73, 143,741.08 and 56,412.98

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Solution

The fourth proportional to 104,160.73, 143,741.08 and 56,412.98 is: 77,849.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,160.73 : 143,741.08 = 56,412.98 : x
  2. Step 2: Convert to fraction form
    104,160.73/143,741.08 = 56,412.98/x
  3. Step 3: Cross multiply
    104,160.73x = 143,741.08 × 56,412.98
  4. Step 4: Simplify right side
    104,160.73x = 8,108,862,671.22
  5. Step 5: Solve for x
    x = 8,108,862,671.22/104,160.73
  6. Step 6: Final answer
    x = 77,849.52

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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.