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Finding the Fourth Proportional to 517,071.01, 775,606.74 and 162,112.70

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Solution

The fourth proportional to 517,071.01, 775,606.74 and 162,112.70 is: 243,169.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,071.01 : 775,606.74 = 162,112.70 : x
  2. Step 2: Convert to fraction form
    517,071.01/775,606.74 = 162,112.70/x
  3. Step 3: Cross multiply
    517,071.01x = 775,606.74 × 162,112.70
  4. Step 4: Simplify right side
    517,071.01x = 125,735,704,090.69
  5. Step 5: Solve for x
    x = 125,735,704,090.69/517,071.01
  6. Step 6: Final answer
    x = 243,169.12

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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.