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Finding the Fourth Proportional to 202,686.99, 279,703.92 and 112,046.77

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Solution

The fourth proportional to 202,686.99, 279,703.92 and 112,046.77 is: 154,622.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,686.99 : 279,703.92 = 112,046.77 : x
  2. Step 2: Convert to fraction form
    202,686.99/279,703.92 = 112,046.77/x
  3. Step 3: Cross multiply
    202,686.99x = 279,703.92 × 112,046.77
  4. Step 4: Simplify right side
    202,686.99x = 31,339,920,792.34
  5. Step 5: Solve for x
    x = 31,339,920,792.34/202,686.99
  6. Step 6: Final answer
    x = 154,622.26

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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.