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Finding the Fourth Proportional to 207,262.70, 286,022.51 and 117,838.70

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Solution

The fourth proportional to 207,262.70, 286,022.51 and 117,838.70 is: 162,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,262.70 : 286,022.51 = 117,838.70 : x
  2. Step 2: Convert to fraction form
    207,262.70/286,022.51 = 117,838.70/x
  3. Step 3: Cross multiply
    207,262.70x = 286,022.51 × 117,838.70
  4. Step 4: Simplify right side
    207,262.70x = 33,704,520,749.14
  5. Step 5: Solve for x
    x = 33,704,520,749.14/207,262.70
  6. Step 6: Final answer
    x = 162,617.40

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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.