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Finding the Fourth Proportional to 107,846.80, 161,712.60 and 37,728.40

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Solution

The fourth proportional to 107,846.80, 161,712.60 and 37,728.40 is: 56,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,846.80 : 161,712.60 = 37,728.40 : x
  2. Step 2: Convert to fraction form
    107,846.80/161,712.60 = 37,728.40/x
  3. Step 3: Cross multiply
    107,846.80x = 161,712.60 × 37,728.40
  4. Step 4: Simplify right side
    107,846.80x = 6,101,157,657.84
  5. Step 5: Solve for x
    x = 6,101,157,657.84/107,846.80
  6. Step 6: Final answer
    x = 56,572.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.