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Finding the Fourth Proportional to 92,906.36, 128,210.04 and 50,464.86

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Solution

The fourth proportional to 92,906.36, 128,210.04 and 50,464.86 is: 69,641.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,906.36 : 128,210.04 = 50,464.86 : x
  2. Step 2: Convert to fraction form
    92,906.36/128,210.04 = 50,464.86/x
  3. Step 3: Cross multiply
    92,906.36x = 128,210.04 × 50,464.86
  4. Step 4: Simplify right side
    92,906.36x = 6,470,101,719.19
  5. Step 5: Solve for x
    x = 6,470,101,719.19/92,906.36
  6. Step 6: Final answer
    x = 69,641.11

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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.