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Finding the Fourth Proportional to 61,288.70, 84,582.03 and 46,154.66

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Solution

The fourth proportional to 61,288.70, 84,582.03 and 46,154.66 is: 63,696.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,288.70 : 84,582.03 = 46,154.66 : x
  2. Step 2: Convert to fraction form
    61,288.70/84,582.03 = 46,154.66/x
  3. Step 3: Cross multiply
    61,288.70x = 84,582.03 × 46,154.66
  4. Step 4: Simplify right side
    61,288.70x = 3,903,854,413.85
  5. Step 5: Solve for x
    x = 3,903,854,413.85/61,288.70
  6. Step 6: Final answer
    x = 63,696.16

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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.