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Finding the Fourth Proportional to 474,455.96, 711,720.45 and 137,501.22

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Solution

The fourth proportional to 474,455.96, 711,720.45 and 137,501.22 is: 206,262.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,455.96 : 711,720.45 = 137,501.22 : x
  2. Step 2: Convert to fraction form
    474,455.96/711,720.45 = 137,501.22/x
  3. Step 3: Cross multiply
    474,455.96x = 711,720.45 × 137,501.22
  4. Step 4: Simplify right side
    474,455.96x = 97,862,430,173.95
  5. Step 5: Solve for x
    x = 97,862,430,173.95/474,455.96
  6. Step 6: Final answer
    x = 206,262.41

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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.