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Finding the Fourth Proportional to 61,607.60, 84,941.46 and 51,413.32

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Solution

The fourth proportional to 61,607.60, 84,941.46 and 51,413.32 is: 70,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,607.60 : 84,941.46 = 51,413.32 : x
  2. Step 2: Convert to fraction form
    61,607.60/84,941.46 = 51,413.32/x
  3. Step 3: Cross multiply
    61,607.60x = 84,941.46 × 51,413.32
  4. Step 4: Simplify right side
    61,607.60x = 4,367,122,464.25
  5. Step 5: Solve for x
    x = 4,367,122,464.25/61,607.60
  6. Step 6: Final answer
    x = 70,886.10

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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.