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Finding the Fourth Proportional to 74,070.72, 110,847.48 and 60,587.88

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Solution

The fourth proportional to 74,070.72, 110,847.48 and 60,587.88 is: 90,670.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,070.72 : 110,847.48 = 60,587.88 : x
  2. Step 2: Convert to fraction form
    74,070.72/110,847.48 = 60,587.88/x
  3. Step 3: Cross multiply
    74,070.72x = 110,847.48 × 60,587.88
  4. Step 4: Simplify right side
    74,070.72x = 6,716,013,816.54
  5. Step 5: Solve for x
    x = 6,716,013,816.54/74,070.72
  6. Step 6: Final answer
    x = 90,670.29

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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.