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Finding the Fourth Proportional to 578,360.94, 867,515.90 and 157,636.82

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Solution

The fourth proportional to 578,360.94, 867,515.90 and 157,636.82 is: 236,448.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,360.94 : 867,515.90 = 157,636.82 : x
  2. Step 2: Convert to fraction form
    578,360.94/867,515.90 = 157,636.82/x
  3. Step 3: Cross multiply
    578,360.94x = 867,515.90 × 157,636.82
  4. Step 4: Simplify right side
    578,360.94x = 136,752,442,649.67
  5. Step 5: Solve for x
    x = 136,752,442,649.67/578,360.94
  6. Step 6: Final answer
    x = 236,448.27

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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.