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Finding the Fourth Proportional to 107,847.40, 161,771.10 and 37,719.40

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Solution

The fourth proportional to 107,847.40, 161,771.10 and 37,719.40 is: 56,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,847.40 : 161,771.10 = 37,719.40 : x
  2. Step 2: Convert to fraction form
    107,847.40/161,771.10 = 37,719.40/x
  3. Step 3: Cross multiply
    107,847.40x = 161,771.10 × 37,719.40
  4. Step 4: Simplify right side
    107,847.40x = 6,101,908,829.34
  5. Step 5: Solve for x
    x = 6,101,908,829.34/107,847.40
  6. Step 6: Final answer
    x = 56,579.10

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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.