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Finding the Fourth Proportional to 579,360.54, 869,041.53 and 158,640.06

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Solution

The fourth proportional to 579,360.54, 869,041.53 and 158,640.06 is: 237,960.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,360.54 : 869,041.53 = 158,640.06 : x
  2. Step 2: Convert to fraction form
    579,360.54/869,041.53 = 158,640.06/x
  3. Step 3: Cross multiply
    579,360.54x = 869,041.53 × 158,640.06
  4. Step 4: Simplify right side
    579,360.54x = 137,864,800,461.69
  5. Step 5: Solve for x
    x = 137,864,800,461.69/579,360.54
  6. Step 6: Final answer
    x = 237,960.29

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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.