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Finding the Fourth Proportional to 59,190.80, 81,607.08 and 42,214.40

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Solution

The fourth proportional to 59,190.80, 81,607.08 and 42,214.40 is: 58,201.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,190.80 : 81,607.08 = 42,214.40 : x
  2. Step 2: Convert to fraction form
    59,190.80/81,607.08 = 42,214.40/x
  3. Step 3: Cross multiply
    59,190.80x = 81,607.08 × 42,214.40
  4. Step 4: Simplify right side
    59,190.80x = 3,444,993,917.95
  5. Step 5: Solve for x
    x = 3,444,993,917.95/59,190.80
  6. Step 6: Final answer
    x = 58,201.51

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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.