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Finding the Fourth Proportional to 93,697.86, 129,310.05 and 53,412.57

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Solution

The fourth proportional to 93,697.86, 129,310.05 and 53,412.57 is: 73,713.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,697.86 : 129,310.05 = 53,412.57 : x
  2. Step 2: Convert to fraction form
    93,697.86/129,310.05 = 53,412.57/x
  3. Step 3: Cross multiply
    93,697.86x = 129,310.05 × 53,412.57
  4. Step 4: Simplify right side
    93,697.86x = 6,906,782,097.33
  5. Step 5: Solve for x
    x = 6,906,782,097.33/93,697.86
  6. Step 6: Final answer
    x = 73,713.34

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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.