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Finding the Fourth Proportional to 99,068.92, 148,608.08 and 31,608.12

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Solution

The fourth proportional to 99,068.92, 148,608.08 and 31,608.12 is: 47,413.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,068.92 : 148,608.08 = 31,608.12 : x
  2. Step 2: Convert to fraction form
    99,068.92/148,608.08 = 31,608.12/x
  3. Step 3: Cross multiply
    99,068.92x = 148,608.08 × 31,608.12
  4. Step 4: Simplify right side
    99,068.92x = 4,697,222,025.61
  5. Step 5: Solve for x
    x = 4,697,222,025.61/99,068.92
  6. Step 6: Final answer
    x = 47,413.68

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1.5x scale

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.