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Finding the Fourth Proportional to 87,476.96, 120,776.31 and 67,298.24

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Solution

The fourth proportional to 87,476.96, 120,776.31 and 67,298.24 is: 92,916.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,476.96 : 120,776.31 = 67,298.24 : x
  2. Step 2: Convert to fraction form
    87,476.96/120,776.31 = 67,298.24/x
  3. Step 3: Cross multiply
    87,476.96x = 120,776.31 × 67,298.24
  4. Step 4: Simplify right side
    87,476.96x = 8,128,032,492.81
  5. Step 5: Solve for x
    x = 8,128,032,492.81/87,476.96
  6. Step 6: Final answer
    x = 92,916.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.