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Finding the Fourth Proportional to 207,687.45, 286,608.93 and 112,194.14

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Solution

The fourth proportional to 207,687.45, 286,608.93 and 112,194.14 is: 154,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,687.45 : 286,608.93 = 112,194.14 : x
  2. Step 2: Convert to fraction form
    207,687.45/286,608.93 = 112,194.14/x
  3. Step 3: Cross multiply
    207,687.45x = 286,608.93 × 112,194.14
  4. Step 4: Simplify right side
    207,687.45x = 32,155,842,807.16
  5. Step 5: Solve for x
    x = 32,155,842,807.16/207,687.45
  6. Step 6: Final answer
    x = 154,828.05

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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.