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Finding the Fourth Proportional to 207,606.32, 286,496.71 and 112,113.01

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Solution

The fourth proportional to 207,606.32, 286,496.71 and 112,113.01 is: 154,715.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,606.32 : 286,496.71 = 112,113.01 : x
  2. Step 2: Convert to fraction form
    207,606.32/286,496.71 = 112,113.01/x
  3. Step 3: Cross multiply
    207,606.32x = 286,496.71 × 112,113.01
  4. Step 4: Simplify right side
    207,606.32x = 32,120,008,513.20
  5. Step 5: Solve for x
    x = 32,120,008,513.20/207,606.32
  6. Step 6: Final answer
    x = 154,715.95

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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.