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Finding the Fourth Proportional to 93,889.26, 129,496.54 and 65,208.96

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Solution

The fourth proportional to 93,889.26, 129,496.54 and 65,208.96 is: 89,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,889.26 : 129,496.54 = 65,208.96 : x
  2. Step 2: Convert to fraction form
    93,889.26/129,496.54 = 65,208.96/x
  3. Step 3: Cross multiply
    93,889.26x = 129,496.54 × 65,208.96
  4. Step 4: Simplify right side
    93,889.26x = 8,444,334,697.00
  5. Step 5: Solve for x
    x = 8,444,334,697.00/93,889.26
  6. Step 6: Final answer
    x = 89,939.30

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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.