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Finding the Fourth Proportional to 92,795.85, 128,058.62 and 50,354.38

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Solution

The fourth proportional to 92,795.85, 128,058.62 and 50,354.38 is: 69,489.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,795.85 : 128,058.62 = 50,354.38 : x
  2. Step 2: Convert to fraction form
    92,795.85/128,058.62 = 50,354.38/x
  3. Step 3: Cross multiply
    92,795.85x = 128,058.62 × 50,354.38
  4. Step 4: Simplify right side
    92,795.85x = 6,448,312,413.76
  5. Step 5: Solve for x
    x = 6,448,312,413.76/92,795.85
  6. Step 6: Final answer
    x = 69,489.23

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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.