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Finding the Fourth Proportional to 119,731, 179,597.40 and 53,153.23

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Solution

The fourth proportional to 119,731, 179,597.40 and 53,153.23 is: 79,730.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,731 : 179,597.40 = 53,153.23 : x
  2. Step 2: Convert to fraction form
    119,731/179,597.40 = 53,153.23/x
  3. Step 3: Cross multiply
    119,731x = 179,597.40 × 53,153.23
  4. Step 4: Simplify right side
    119,731x = 9,546,181,909.60
  5. Step 5: Solve for x
    x = 9,546,181,909.60/119,731
  6. Step 6: Final answer
    x = 79,730.24

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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.