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Finding the Fourth Proportional to 161,574.90, 242,473.05 and 56,393.87

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Solution

The fourth proportional to 161,574.90, 242,473.05 and 56,393.87 is: 84,629.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,574.90 : 242,473.05 = 56,393.87 : x
  2. Step 2: Convert to fraction form
    161,574.90/242,473.05 = 56,393.87/x
  3. Step 3: Cross multiply
    161,574.90x = 242,473.05 × 56,393.87
  4. Step 4: Simplify right side
    161,574.90x = 13,673,992,447.84
  5. Step 5: Solve for x
    x = 13,673,992,447.84/161,574.90
  6. Step 6: Final answer
    x = 84,629.43

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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.