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Finding the Fourth Proportional to 71,116.08, 98,136.08 and 42,468

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Solution

The fourth proportional to 71,116.08, 98,136.08 and 42,468 is: 58,603.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,116.08 : 98,136.08 = 42,468 : x
  2. Step 2: Convert to fraction form
    71,116.08/98,136.08 = 42,468/x
  3. Step 3: Cross multiply
    71,116.08x = 98,136.08 × 42,468
  4. Step 4: Simplify right side
    71,116.08x = 4,167,643,045.44
  5. Step 5: Solve for x
    x = 4,167,643,045.44/71,116.08
  6. Step 6: Final answer
    x = 58,603.39

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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.