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Finding the Fourth Proportional to 92,884.22, 128,182.74 and 54,646.28

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Solution

The fourth proportional to 92,884.22, 128,182.74 and 54,646.28 is: 75,413.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,884.22 : 128,182.74 = 54,646.28 : x
  2. Step 2: Convert to fraction form
    92,884.22/128,182.74 = 54,646.28/x
  3. Step 3: Cross multiply
    92,884.22x = 128,182.74 × 54,646.28
  4. Step 4: Simplify right side
    92,884.22x = 7,004,709,901.21
  5. Step 5: Solve for x
    x = 7,004,709,901.21/92,884.22
  6. Step 6: Final answer
    x = 75,413.35

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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.