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Finding the Fourth Proportional to 202,211.97, 279,051.71 and 111,573.57

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Solution

The fourth proportional to 202,211.97, 279,051.71 and 111,573.57 is: 153,971.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,211.97 : 279,051.71 = 111,573.57 : x
  2. Step 2: Convert to fraction form
    202,211.97/279,051.71 = 111,573.57/x
  3. Step 3: Cross multiply
    202,211.97x = 279,051.71 × 111,573.57
  4. Step 4: Simplify right side
    202,211.97x = 31,134,795,499.30
  5. Step 5: Solve for x
    x = 31,134,795,499.30/202,211.97
  6. Step 6: Final answer
    x = 153,971.08

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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.