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Finding the Fourth Proportional to 93,803.16, 129,422.70 and 60,288.60

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Solution

The fourth proportional to 93,803.16, 129,422.70 and 60,288.60 is: 83,181.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,803.16 : 129,422.70 = 60,288.60 : x
  2. Step 2: Convert to fraction form
    93,803.16/129,422.70 = 60,288.60/x
  3. Step 3: Cross multiply
    93,803.16x = 129,422.70 × 60,288.60
  4. Step 4: Simplify right side
    93,803.16x = 7,802,713,391.22
  5. Step 5: Solve for x
    x = 7,802,713,391.22/93,803.16
  6. Step 6: Final answer
    x = 83,181.78

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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.