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Finding the Fourth Proportional to 117,413.62, 162,031.28 and 63,699.02

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Solution

The fourth proportional to 117,413.62, 162,031.28 and 63,699.02 is: 87,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,413.62 : 162,031.28 = 63,699.02 : x
  2. Step 2: Convert to fraction form
    117,413.62/162,031.28 = 63,699.02/x
  3. Step 3: Cross multiply
    117,413.62x = 162,031.28 × 63,699.02
  4. Step 4: Simplify right side
    117,413.62x = 10,321,233,224.31
  5. Step 5: Solve for x
    x = 10,321,233,224.31/117,413.62
  6. Step 6: Final answer
    x = 87,904.91

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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.