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Finding the Fourth Proportional to 202,499.98, 279,448.86 and 111,862.18

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Solution

The fourth proportional to 202,499.98, 279,448.86 and 111,862.18 is: 154,369.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,499.98 : 279,448.86 = 111,862.18 : x
  2. Step 2: Convert to fraction form
    202,499.98/279,448.86 = 111,862.18/x
  3. Step 3: Cross multiply
    202,499.98x = 279,448.86 × 111,862.18
  4. Step 4: Simplify right side
    202,499.98x = 31,259,758,678.11
  5. Step 5: Solve for x
    x = 31,259,758,678.11/202,499.98
  6. Step 6: Final answer
    x = 154,369.19

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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.