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Finding the Fourth Proportional to 107,998.96, 161,999.88 and 37,880.32

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Solution

The fourth proportional to 107,998.96, 161,999.88 and 37,880.32 is: 56,820.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,998.96 : 161,999.88 = 37,880.32 : x
  2. Step 2: Convert to fraction form
    107,998.96/161,999.88 = 37,880.32/x
  3. Step 3: Cross multiply
    107,998.96x = 161,999.88 × 37,880.32
  4. Step 4: Simplify right side
    107,998.96x = 6,136,607,294.36
  5. Step 5: Solve for x
    x = 6,136,607,294.36/107,998.96
  6. Step 6: Final answer
    x = 56,820.99

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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.