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Finding the Fourth Proportional to 93,193.25, 128,618.84 and 55,467.50

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Solution

The fourth proportional to 93,193.25, 128,618.84 and 55,467.50 is: 76,552.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,193.25 : 128,618.84 = 55,467.50 : x
  2. Step 2: Convert to fraction form
    93,193.25/128,618.84 = 55,467.50/x
  3. Step 3: Cross multiply
    93,193.25x = 128,618.84 × 55,467.50
  4. Step 4: Simplify right side
    93,193.25x = 7,134,165,507.70
  5. Step 5: Solve for x
    x = 7,134,165,507.70/93,193.25
  6. Step 6: Final answer
    x = 76,552.38

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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.