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Finding the Fourth Proportional to 111,672, 167,413.86 and 48,444.50

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Solution

The fourth proportional to 111,672, 167,413.86 and 48,444.50 is: 72,625.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,672 : 167,413.86 = 48,444.50 : x
  2. Step 2: Convert to fraction form
    111,672/167,413.86 = 48,444.50/x
  3. Step 3: Cross multiply
    111,672x = 167,413.86 × 48,444.50
  4. Step 4: Simplify right side
    111,672x = 8,110,281,159.30
  5. Step 5: Solve for x
    x = 8,110,281,159.30/111,672
  6. Step 6: Final answer
    x = 72,625.91

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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.