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Finding the Fourth Proportional to 56,740.40, 85,110.60 and 37,057.40

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Solution

The fourth proportional to 56,740.40, 85,110.60 and 37,057.40 is: 55,586.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,740.40 : 85,110.60 = 37,057.40 : x
  2. Step 2: Convert to fraction form
    56,740.40/85,110.60 = 37,057.40/x
  3. Step 3: Cross multiply
    56,740.40x = 85,110.60 × 37,057.40
  4. Step 4: Simplify right side
    56,740.40x = 3,153,977,548.44
  5. Step 5: Solve for x
    x = 3,153,977,548.44/56,740.40
  6. Step 6: Final answer
    x = 55,586.10

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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.