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Finding the Fourth Proportional to 117,288.48, 161,854.16 and 69,513.46

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Solution

The fourth proportional to 117,288.48, 161,854.16 and 69,513.46 is: 95,926.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,288.48 : 161,854.16 = 69,513.46 : x
  2. Step 2: Convert to fraction form
    117,288.48/161,854.16 = 69,513.46/x
  3. Step 3: Cross multiply
    117,288.48x = 161,854.16 × 69,513.46
  4. Step 4: Simplify right side
    117,288.48x = 11,251,042,676.99
  5. Step 5: Solve for x
    x = 11,251,042,676.99/117,288.48
  6. Step 6: Final answer
    x = 95,926.24

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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.