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Finding the Fourth Proportional to 109,657.51, 151,327.86 and 59,356.51

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Solution

The fourth proportional to 109,657.51, 151,327.86 and 59,356.51 is: 81,912.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,657.51 : 151,327.86 = 59,356.51 : x
  2. Step 2: Convert to fraction form
    109,657.51/151,327.86 = 59,356.51/x
  3. Step 3: Cross multiply
    109,657.51x = 151,327.86 × 59,356.51
  4. Step 4: Simplify right side
    109,657.51x = 8,982,293,635.37
  5. Step 5: Solve for x
    x = 8,982,293,635.37/109,657.51
  6. Step 6: Final answer
    x = 81,912.25

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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.