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Finding the Fourth Proportional to 93,949.84, 128,856.95 and 88,866.28

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Solution

The fourth proportional to 93,949.84, 128,856.95 and 88,866.28 is: 121,884.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,949.84 : 128,856.95 = 88,866.28 : x
  2. Step 2: Convert to fraction form
    93,949.84/128,856.95 = 88,866.28/x
  3. Step 3: Cross multiply
    93,949.84x = 128,856.95 × 88,866.28
  4. Step 4: Simplify right side
    93,949.84x = 11,451,037,798.65
  5. Step 5: Solve for x
    x = 11,451,037,798.65/93,949.84
  6. Step 6: Final answer
    x = 121,884.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.