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Finding the Fourth Proportional to 228,607.32, 315,340.62 and 151,083.48

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Solution

The fourth proportional to 228,607.32, 315,340.62 and 151,083.48 is: 208,404.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,607.32 : 315,340.62 = 151,083.48 : x
  2. Step 2: Convert to fraction form
    228,607.32/315,340.62 = 151,083.48/x
  3. Step 3: Cross multiply
    228,607.32x = 315,340.62 × 151,083.48
  4. Step 4: Simplify right side
    228,607.32x = 47,642,758,254.96
  5. Step 5: Solve for x
    x = 47,642,758,254.96/228,607.32
  6. Step 6: Final answer
    x = 208,404.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.