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Finding the Fourth Proportional to 93,192, 128,617.11 and 55,466.25

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Solution

The fourth proportional to 93,192, 128,617.11 and 55,466.25 is: 76,550.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,192 : 128,617.11 = 55,466.25 : x
  2. Step 2: Convert to fraction form
    93,192/128,617.11 = 55,466.25/x
  3. Step 3: Cross multiply
    93,192x = 128,617.11 × 55,466.25
  4. Step 4: Simplify right side
    93,192x = 7,133,908,777.54
  5. Step 5: Solve for x
    x = 7,133,908,777.54/93,192
  6. Step 6: Final answer
    x = 76,550.66

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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.