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Finding the Fourth Proportional to 194,990.29, 292,485.53 and 70,331.29

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Solution

The fourth proportional to 194,990.29, 292,485.53 and 70,331.29 is: 105,496.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,990.29 : 292,485.53 = 70,331.29 : x
  2. Step 2: Convert to fraction form
    194,990.29/292,485.53 = 70,331.29/x
  3. Step 3: Cross multiply
    194,990.29x = 292,485.53 × 70,331.29
  4. Step 4: Simplify right side
    194,990.29x = 20,570,884,631.23
  5. Step 5: Solve for x
    x = 20,570,884,631.23/194,990.29
  6. Step 6: Final answer
    x = 105,496.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.