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Finding the Fourth Proportional to 123,601.16, 170,569.68 and 67,012.76

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Solution

The fourth proportional to 123,601.16, 170,569.68 and 67,012.76 is: 92,477.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,601.16 : 170,569.68 = 67,012.76 : x
  2. Step 2: Convert to fraction form
    123,601.16/170,569.68 = 67,012.76/x
  3. Step 3: Cross multiply
    123,601.16x = 170,569.68 × 67,012.76
  4. Step 4: Simplify right side
    123,601.16x = 11,430,345,029.12
  5. Step 5: Solve for x
    x = 11,430,345,029.12/123,601.16
  6. Step 6: Final answer
    x = 92,477.65

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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.