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Finding the Fourth Proportional to 207,969.63, 286,998.11 and 112,476.30

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Solution

The fourth proportional to 207,969.63, 286,998.11 and 112,476.30 is: 155,217.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,969.63 : 286,998.11 = 112,476.30 : x
  2. Step 2: Convert to fraction form
    207,969.63/286,998.11 = 112,476.30/x
  3. Step 3: Cross multiply
    207,969.63x = 286,998.11 × 112,476.30
  4. Step 4: Simplify right side
    207,969.63x = 32,280,484,957.41
  5. Step 5: Solve for x
    x = 32,280,484,957.41/207,969.63
  6. Step 6: Final answer
    x = 155,217.30

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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.