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Finding the Fourth Proportional to 207,327.54, 286,200.29 and 139,383.93

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Solution

The fourth proportional to 207,327.54, 286,200.29 and 139,383.93 is: 192,409.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,327.54 : 286,200.29 = 139,383.93 : x
  2. Step 2: Convert to fraction form
    207,327.54/286,200.29 = 139,383.93/x
  3. Step 3: Cross multiply
    207,327.54x = 286,200.29 × 139,383.93
  4. Step 4: Simplify right side
    207,327.54x = 39,891,721,187.34
  5. Step 5: Solve for x
    x = 39,891,721,187.34/207,327.54
  6. Step 6: Final answer
    x = 192,409.18

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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.