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Finding the Fourth Proportional to 104,109.95, 143,672.06 and 56,363.49

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Solution

The fourth proportional to 104,109.95, 143,672.06 and 56,363.49 is: 77,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,109.95 : 143,672.06 = 56,363.49 : x
  2. Step 2: Convert to fraction form
    104,109.95/143,672.06 = 56,363.49/x
  3. Step 3: Cross multiply
    104,109.95x = 143,672.06 × 56,363.49
  4. Step 4: Simplify right side
    104,109.95x = 8,097,858,858.00
  5. Step 5: Solve for x
    x = 8,097,858,858.00/104,109.95
  6. Step 6: Final answer
    x = 77,781.79

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1.5x scale

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.