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Finding the Fourth Proportional to 130,171.01, 195,271.90 and 45,913.59

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Solution

The fourth proportional to 130,171.01, 195,271.90 and 45,913.59 is: 68,875.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,171.01 : 195,271.90 = 45,913.59 : x
  2. Step 2: Convert to fraction form
    130,171.01/195,271.90 = 45,913.59/x
  3. Step 3: Cross multiply
    130,171.01x = 195,271.90 × 45,913.59
  4. Step 4: Simplify right side
    130,171.01x = 8,965,633,840.34
  5. Step 5: Solve for x
    x = 8,965,633,840.34/130,171.01
  6. Step 6: Final answer
    x = 68,875.81

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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.