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Finding the Fourth Proportional to 105,187.41, 145,143.90 and 59,850.90

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Solution

The fourth proportional to 105,187.41, 145,143.90 and 59,850.90 is: 82,585.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,187.41 : 145,143.90 = 59,850.90 : x
  2. Step 2: Convert to fraction form
    105,187.41/145,143.90 = 59,850.90/x
  3. Step 3: Cross multiply
    105,187.41x = 145,143.90 × 59,850.90
  4. Step 4: Simplify right side
    105,187.41x = 8,686,993,044.51
  5. Step 5: Solve for x
    x = 8,686,993,044.51/105,187.41
  6. Step 6: Final answer
    x = 82,585.86

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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.