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Finding the Fourth Proportional to 169,317.72, 254,002.86 and 56,989.19

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Solution

The fourth proportional to 169,317.72, 254,002.86 and 56,989.19 is: 85,492.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,317.72 : 254,002.86 = 56,989.19 : x
  2. Step 2: Convert to fraction form
    169,317.72/254,002.86 = 56,989.19/x
  3. Step 3: Cross multiply
    169,317.72x = 254,002.86 × 56,989.19
  4. Step 4: Simplify right side
    169,317.72x = 14,475,415,979.07
  5. Step 5: Solve for x
    x = 14,475,415,979.07/169,317.72
  6. Step 6: Final answer
    x = 85,492.62

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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.