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Finding the Fourth Proportional to 194,796.72, 292,019.64 and 70,050

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Solution

The fourth proportional to 194,796.72, 292,019.64 and 70,050 is: 105,011.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,796.72 : 292,019.64 = 70,050 : x
  2. Step 2: Convert to fraction form
    194,796.72/292,019.64 = 70,050/x
  3. Step 3: Cross multiply
    194,796.72x = 292,019.64 × 70,050
  4. Step 4: Simplify right side
    194,796.72x = 20,455,975,782
  5. Step 5: Solve for x
    x = 20,455,975,782/194,796.72
  6. Step 6: Final answer
    x = 105,011.91

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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.