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Finding the Fourth Proportional to 58,331.60, 87,540.60 and 42,779.60

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Solution

The fourth proportional to 58,331.60, 87,540.60 and 42,779.60 is: 64,201.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,331.60 : 87,540.60 = 42,779.60 : x
  2. Step 2: Convert to fraction form
    58,331.60/87,540.60 = 42,779.60/x
  3. Step 3: Cross multiply
    58,331.60x = 87,540.60 × 42,779.60
  4. Step 4: Simplify right side
    58,331.60x = 3,744,951,851.76
  5. Step 5: Solve for x
    x = 3,744,951,851.76/58,331.60
  6. Step 6: Final answer
    x = 64,201.08

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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.