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Finding the Fourth Proportional to 93,466.92, 128,969.13 and 55,221.18

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Solution

The fourth proportional to 93,466.92, 128,969.13 and 55,221.18 is: 76,196.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,466.92 : 128,969.13 = 55,221.18 : x
  2. Step 2: Convert to fraction form
    93,466.92/128,969.13 = 55,221.18/x
  3. Step 3: Cross multiply
    93,466.92x = 128,969.13 × 55,221.18
  4. Step 4: Simplify right side
    93,466.92x = 7,121,827,542.17
  5. Step 5: Solve for x
    x = 7,121,827,542.17/93,466.92
  6. Step 6: Final answer
    x = 76,196.24

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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.