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Finding the Fourth Proportional to 92,906.54, 128,211.15 and 50,465.08

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Solution

The fourth proportional to 92,906.54, 128,211.15 and 50,465.08 is: 69,641.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,906.54 : 128,211.15 = 50,465.08 : x
  2. Step 2: Convert to fraction form
    92,906.54/128,211.15 = 50,465.08/x
  3. Step 3: Cross multiply
    92,906.54x = 128,211.15 × 50,465.08
  4. Step 4: Simplify right side
    92,906.54x = 6,470,185,941.64
  5. Step 5: Solve for x
    x = 6,470,185,941.64/92,906.54
  6. Step 6: Final answer
    x = 69,641.88

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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.