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Finding the Fourth Proportional to 59,181.20, 88,771.80 and 31,090.40

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Solution

The fourth proportional to 59,181.20, 88,771.80 and 31,090.40 is: 46,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,181.20 : 88,771.80 = 31,090.40 : x
  2. Step 2: Convert to fraction form
    59,181.20/88,771.80 = 31,090.40/x
  3. Step 3: Cross multiply
    59,181.20x = 88,771.80 × 31,090.40
  4. Step 4: Simplify right side
    59,181.20x = 2,759,950,770.72
  5. Step 5: Solve for x
    x = 2,759,950,770.72/59,181.20
  6. Step 6: Final answer
    x = 46,635.60

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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.