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Finding the Fourth Proportional to 100,416.76, 150,424.32 and 60,413.68

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Solution

The fourth proportional to 100,416.76, 150,424.32 and 60,413.68 is: 90,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,416.76 : 150,424.32 = 60,413.68 : x
  2. Step 2: Convert to fraction form
    100,416.76/150,424.32 = 60,413.68/x
  3. Step 3: Cross multiply
    100,416.76x = 150,424.32 × 60,413.68
  4. Step 4: Simplify right side
    100,416.76x = 9,087,686,732.70
  5. Step 5: Solve for x
    x = 9,087,686,732.70/100,416.76
  6. Step 6: Final answer
    x = 90,499.70

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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.