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Finding the Fourth Proportional to 117,703, 162,453.70 and 69,947.08

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Solution

The fourth proportional to 117,703, 162,453.70 and 69,947.08 is: 96,540.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,703 : 162,453.70 = 69,947.08 : x
  2. Step 2: Convert to fraction form
    117,703/162,453.70 = 69,947.08/x
  3. Step 3: Cross multiply
    117,703x = 162,453.70 × 69,947.08
  4. Step 4: Simplify right side
    117,703x = 11,363,161,950.20
  5. Step 5: Solve for x
    x = 11,363,161,950.20/117,703
  6. Step 6: Final answer
    x = 96,540.97

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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.