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Finding the Fourth Proportional to 104,062.60, 143,606.76 and 56,315.94

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Solution

The fourth proportional to 104,062.60, 143,606.76 and 56,315.94 is: 77,716.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,062.60 : 143,606.76 = 56,315.94 : x
  2. Step 2: Convert to fraction form
    104,062.60/143,606.76 = 56,315.94/x
  3. Step 3: Cross multiply
    104,062.60x = 143,606.76 × 56,315.94
  4. Step 4: Simplify right side
    104,062.60x = 8,087,349,679.75
  5. Step 5: Solve for x
    x = 8,087,349,679.75/104,062.60
  6. Step 6: Final answer
    x = 77,716.20

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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.