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Finding the Fourth Proportional to 202,216.14, 279,053.64 and 111,580.65

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Solution

The fourth proportional to 202,216.14, 279,053.64 and 111,580.65 is: 153,978.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,216.14 : 279,053.64 = 111,580.65 : x
  2. Step 2: Convert to fraction form
    202,216.14/279,053.64 = 111,580.65/x
  3. Step 3: Cross multiply
    202,216.14x = 279,053.64 × 111,580.65
  4. Step 4: Simplify right side
    202,216.14x = 31,136,986,536.07
  5. Step 5: Solve for x
    x = 31,136,986,536.07/202,216.14
  6. Step 6: Final answer
    x = 153,978.74

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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.