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Finding the Fourth Proportional to 107,413.30, 160,925.55 and 91,861.30

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Solution

The fourth proportional to 107,413.30, 160,925.55 and 91,861.30 is: 137,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,413.30 : 160,925.55 = 91,861.30 : x
  2. Step 2: Convert to fraction form
    107,413.30/160,925.55 = 91,861.30/x
  3. Step 3: Cross multiply
    107,413.30x = 160,925.55 × 91,861.30
  4. Step 4: Simplify right side
    107,413.30x = 14,782,830,226.22
  5. Step 5: Solve for x
    x = 14,782,830,226.22/107,413.30
  6. Step 6: Final answer
    x = 137,625.70

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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.