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Finding the Fourth Proportional to 118,082.69, 162,950.87 and 64,368.75

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Solution

The fourth proportional to 118,082.69, 162,950.87 and 64,368.75 is: 88,827.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,082.69 : 162,950.87 = 64,368.75 : x
  2. Step 2: Convert to fraction form
    118,082.69/162,950.87 = 64,368.75/x
  3. Step 3: Cross multiply
    118,082.69x = 162,950.87 × 64,368.75
  4. Step 4: Simplify right side
    118,082.69x = 10,488,943,491.47
  5. Step 5: Solve for x
    x = 10,488,943,491.47/118,082.69
  6. Step 6: Final answer
    x = 88,827.11

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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.