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Finding the Fourth Proportional to 417,559.55, 626,333.87 and 102,019.19

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Solution

The fourth proportional to 417,559.55, 626,333.87 and 102,019.19 is: 153,027.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,559.55 : 626,333.87 = 102,019.19 : x
  2. Step 2: Convert to fraction form
    417,559.55/626,333.87 = 102,019.19/x
  3. Step 3: Cross multiply
    417,559.55x = 626,333.87 × 102,019.19
  4. Step 4: Simplify right side
    417,559.55x = 63,898,073,576.87
  5. Step 5: Solve for x
    x = 63,898,073,576.87/417,559.55
  6. Step 6: Final answer
    x = 153,027.45

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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.