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Finding the Fourth Proportional to 207,603.29, 286,433.28 and 116,927.57

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Solution

The fourth proportional to 207,603.29, 286,433.28 and 116,927.57 is: 161,326.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,603.29 : 286,433.28 = 116,927.57 : x
  2. Step 2: Convert to fraction form
    207,603.29/286,433.28 = 116,927.57/x
  3. Step 3: Cross multiply
    207,603.29x = 286,433.28 × 116,927.57
  4. Step 4: Simplify right side
    207,603.29x = 33,491,947,397.53
  5. Step 5: Solve for x
    x = 33,491,947,397.53/207,603.29
  6. Step 6: Final answer
    x = 161,326.67

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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.