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Finding the Fourth Proportional to 272,878.86, 376,600.52 and 152,039.82

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Solution

The fourth proportional to 272,878.86, 376,600.52 and 152,039.82 is: 209,830.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,878.86 : 376,600.52 = 152,039.82 : x
  2. Step 2: Convert to fraction form
    272,878.86/376,600.52 = 152,039.82/x
  3. Step 3: Cross multiply
    272,878.86x = 376,600.52 × 152,039.82
  4. Step 4: Simplify right side
    272,878.86x = 57,258,275,272.71
  5. Step 5: Solve for x
    x = 57,258,275,272.71/272,878.86
  6. Step 6: Final answer
    x = 209,830.38

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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.