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Finding the Fourth Proportional to 115,487, 159,372.14 and 62,495

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Solution

The fourth proportional to 115,487, 159,372.14 and 62,495 is: 86,243.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,487 : 159,372.14 = 62,495 : x
  2. Step 2: Convert to fraction form
    115,487/159,372.14 = 62,495/x
  3. Step 3: Cross multiply
    115,487x = 159,372.14 × 62,495
  4. Step 4: Simplify right side
    115,487x = 9,959,961,889.30
  5. Step 5: Solve for x
    x = 9,959,961,889.30/115,487
  6. Step 6: Final answer
    x = 86,243.14

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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.