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Finding the Fourth Proportional to 86,695, 119,639.10 and 46,951

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Solution

The fourth proportional to 86,695, 119,639.10 and 46,951 is: 64,792.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,695 : 119,639.10 = 46,951 : x
  2. Step 2: Convert to fraction form
    86,695/119,639.10 = 46,951/x
  3. Step 3: Cross multiply
    86,695x = 119,639.10 × 46,951
  4. Step 4: Simplify right side
    86,695x = 5,617,175,384.10
  5. Step 5: Solve for x
    x = 5,617,175,384.10/86,695
  6. Step 6: Final answer
    x = 64,792.38

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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.