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Finding the Fourth Proportional to 207,407.58, 286,224.15 and 117,989.34

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Solution

The fourth proportional to 207,407.58, 286,224.15 and 117,989.34 is: 162,826.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,407.58 : 286,224.15 = 117,989.34 : x
  2. Step 2: Convert to fraction form
    207,407.58/286,224.15 = 117,989.34/x
  3. Step 3: Cross multiply
    207,407.58x = 286,224.15 × 117,989.34
  4. Step 4: Simplify right side
    207,407.58x = 33,771,398,550.56
  5. Step 5: Solve for x
    x = 33,771,398,550.56/207,407.58
  6. Step 6: Final answer
    x = 162,826.25

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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.