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Finding the Fourth Proportional to 188,703.98, 260,413.55 and 102,663.45

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Solution

The fourth proportional to 188,703.98, 260,413.55 and 102,663.45 is: 141,676.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,703.98 : 260,413.55 = 102,663.45 : x
  2. Step 2: Convert to fraction form
    188,703.98/260,413.55 = 102,663.45/x
  3. Step 3: Cross multiply
    188,703.98x = 260,413.55 × 102,663.45
  4. Step 4: Simplify right side
    188,703.98x = 26,734,953,469.75
  5. Step 5: Solve for x
    x = 26,734,953,469.75/188,703.98
  6. Step 6: Final answer
    x = 141,676.68

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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.