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Finding the Fourth Proportional to 207,886.69, 286,883.61 and 112,393.39

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Solution

The fourth proportional to 207,886.69, 286,883.61 and 112,393.39 is: 155,102.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,886.69 : 286,883.61 = 112,393.39 : x
  2. Step 2: Convert to fraction form
    207,886.69/286,883.61 = 112,393.39/x
  3. Step 3: Cross multiply
    207,886.69x = 286,883.61 × 112,393.39
  4. Step 4: Simplify right side
    207,886.69x = 32,243,821,336.72
  5. Step 5: Solve for x
    x = 32,243,821,336.72/207,886.69
  6. Step 6: Final answer
    x = 155,102.86

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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.