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Finding the Fourth Proportional to 169,415.57, 254,070.32 and 61,331.29

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Solution

The fourth proportional to 169,415.57, 254,070.32 and 61,331.29 is: 91,977.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,415.57 : 254,070.32 = 61,331.29 : x
  2. Step 2: Convert to fraction form
    169,415.57/254,070.32 = 61,331.29/x
  3. Step 3: Cross multiply
    169,415.57x = 254,070.32 × 61,331.29
  4. Step 4: Simplify right side
    169,415.57x = 15,582,461,308.61
  5. Step 5: Solve for x
    x = 15,582,461,308.61/169,415.57
  6. Step 6: Final answer
    x = 91,977.74

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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.