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Finding the Fourth Proportional to 389,012.64, 583,597.60 and 164,373.72

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Solution

The fourth proportional to 389,012.64, 583,597.60 and 164,373.72 is: 246,593.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,012.64 : 583,597.60 = 164,373.72 : x
  2. Step 2: Convert to fraction form
    389,012.64/583,597.60 = 164,373.72/x
  3. Step 3: Cross multiply
    389,012.64x = 583,597.60 × 164,373.72
  4. Step 4: Simplify right side
    389,012.64x = 95,928,108,495.07
  5. Step 5: Solve for x
    x = 95,928,108,495.07/389,012.64
  6. Step 6: Final answer
    x = 246,593.81

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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.