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Finding the Fourth Proportional to 105,585.66, 158,174.28 and 58,696.38

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Solution

The fourth proportional to 105,585.66, 158,174.28 and 58,696.38 is: 87,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,585.66 : 158,174.28 = 58,696.38 : x
  2. Step 2: Convert to fraction form
    105,585.66/158,174.28 = 58,696.38/x
  3. Step 3: Cross multiply
    105,585.66x = 158,174.28 × 58,696.38
  4. Step 4: Simplify right side
    105,585.66x = 9,284,257,645.11
  5. Step 5: Solve for x
    x = 9,284,257,645.11/105,585.66
  6. Step 6: Final answer
    x = 87,931.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.