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Finding the Fourth Proportional to 93,181.72, 128,573.68 and 54,953.24

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Solution

The fourth proportional to 93,181.72, 128,573.68 and 54,953.24 is: 75,825.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,181.72 : 128,573.68 = 54,953.24 : x
  2. Step 2: Convert to fraction form
    93,181.72/128,573.68 = 54,953.24/x
  3. Step 3: Cross multiply
    93,181.72x = 128,573.68 × 54,953.24
  4. Step 4: Simplify right side
    93,181.72x = 7,065,540,294.72
  5. Step 5: Solve for x
    x = 7,065,540,294.72/93,181.72
  6. Step 6: Final answer
    x = 75,825.39

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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.