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Finding the Fourth Proportional to 104,898.81, 157,413.84 and 42,569.31

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Solution

The fourth proportional to 104,898.81, 157,413.84 and 42,569.31 is: 63,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,898.81 : 157,413.84 = 42,569.31 : x
  2. Step 2: Convert to fraction form
    104,898.81/157,413.84 = 42,569.31/x
  3. Step 3: Cross multiply
    104,898.81x = 157,413.84 × 42,569.31
  4. Step 4: Simplify right side
    104,898.81x = 6,700,998,553.25
  5. Step 5: Solve for x
    x = 6,700,998,553.25/104,898.81
  6. Step 6: Final answer
    x = 63,880.60

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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.