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Finding the Fourth Proportional to 101,737.23, 140,390.52 and 56,413.55

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Solution

The fourth proportional to 101,737.23, 140,390.52 and 56,413.55 is: 77,846.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,737.23 : 140,390.52 = 56,413.55 : x
  2. Step 2: Convert to fraction form
    101,737.23/140,390.52 = 56,413.55/x
  3. Step 3: Cross multiply
    101,737.23x = 140,390.52 × 56,413.55
  4. Step 4: Simplify right side
    101,737.23x = 7,919,926,917.59
  5. Step 5: Solve for x
    x = 7,919,926,917.59/101,737.23
  6. Step 6: Final answer
    x = 77,846.89

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1.5x scale

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.