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Finding the Fourth Proportional to 112,714.50, 155,546.01 and 62,413.50

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Solution

The fourth proportional to 112,714.50, 155,546.01 and 62,413.50 is: 86,130.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,714.50 : 155,546.01 = 62,413.50 : x
  2. Step 2: Convert to fraction form
    112,714.50/155,546.01 = 62,413.50/x
  3. Step 3: Cross multiply
    112,714.50x = 155,546.01 × 62,413.50
  4. Step 4: Simplify right side
    112,714.50x = 9,708,170,895.14
  5. Step 5: Solve for x
    x = 9,708,170,895.14/112,714.50
  6. Step 6: Final answer
    x = 86,130.63

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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.