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Finding the Fourth Proportional to 93,394.89, 128,888.82 and 53,115.75

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Solution

The fourth proportional to 93,394.89, 128,888.82 and 53,115.75 is: 73,301.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,394.89 : 128,888.82 = 53,115.75 : x
  2. Step 2: Convert to fraction form
    93,394.89/128,888.82 = 53,115.75/x
  3. Step 3: Cross multiply
    93,394.89x = 128,888.82 × 53,115.75
  4. Step 4: Simplify right side
    93,394.89x = 6,846,026,340.92
  5. Step 5: Solve for x
    x = 6,846,026,340.92/93,394.89
  6. Step 6: Final answer
    x = 73,301.94

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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.