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Finding the Fourth Proportional to 207,883.59, 286,879.38 and 112,390.26

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Solution

The fourth proportional to 207,883.59, 286,879.38 and 112,390.26 is: 155,098.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,883.59 : 286,879.38 = 112,390.26 : x
  2. Step 2: Convert to fraction form
    207,883.59/286,879.38 = 112,390.26/x
  3. Step 3: Cross multiply
    207,883.59x = 286,879.38 × 112,390.26
  4. Step 4: Simplify right side
    207,883.59x = 32,242,448,106.84
  5. Step 5: Solve for x
    x = 32,242,448,106.84/207,883.59
  6. Step 6: Final answer
    x = 155,098.57

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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.