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Finding the Fourth Proportional to 207,689.16, 286,619.46 and 117,048.92

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Solution

The fourth proportional to 207,689.16, 286,619.46 and 117,048.92 is: 161,532.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,689.16 : 286,619.46 = 117,048.92 : x
  2. Step 2: Convert to fraction form
    207,689.16/286,619.46 = 117,048.92/x
  3. Step 3: Cross multiply
    207,689.16x = 286,619.46 × 117,048.92
  4. Step 4: Simplify right side
    207,689.16x = 33,548,498,243.98
  5. Step 5: Solve for x
    x = 33,548,498,243.98/207,689.16
  6. Step 6: Final answer
    x = 161,532.25

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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.