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Finding the Fourth Proportional to 194,985.54, 292,478.40 and 70,326.54

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Solution

The fourth proportional to 194,985.54, 292,478.40 and 70,326.54 is: 105,489.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,985.54 : 292,478.40 = 70,326.54 : x
  2. Step 2: Convert to fraction form
    194,985.54/292,478.40 = 70,326.54/x
  3. Step 3: Cross multiply
    194,985.54x = 292,478.40 × 70,326.54
  4. Step 4: Simplify right side
    194,985.54x = 20,568,993,896.74
  5. Step 5: Solve for x
    x = 20,568,993,896.74/194,985.54
  6. Step 6: Final answer
    x = 105,489.84

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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.