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Finding the Fourth Proportional to 107,083, 147,777.78 and 59,331.88

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Solution

The fourth proportional to 107,083, 147,777.78 and 59,331.88 is: 81,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,083 : 147,777.78 = 59,331.88 : x
  2. Step 2: Convert to fraction form
    107,083/147,777.78 = 59,331.88/x
  3. Step 3: Cross multiply
    107,083x = 147,777.78 × 59,331.88
  4. Step 4: Simplify right side
    107,083x = 8,767,933,509.63
  5. Step 5: Solve for x
    x = 8,767,933,509.63/107,083
  6. Step 6: Final answer
    x = 81,879.79

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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.