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Finding the Fourth Proportional to 61,572.69, 92,345.81 and 19,456.02

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Solution

The fourth proportional to 61,572.69, 92,345.81 and 19,456.02 is: 29,179.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,572.69 : 92,345.81 = 19,456.02 : x
  2. Step 2: Convert to fraction form
    61,572.69/92,345.81 = 19,456.02/x
  3. Step 3: Cross multiply
    61,572.69x = 92,345.81 × 19,456.02
  4. Step 4: Simplify right side
    61,572.69x = 1,796,681,829.00
  5. Step 5: Solve for x
    x = 1,796,681,829.00/61,572.69
  6. Step 6: Final answer
    x = 29,179.85

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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.