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Finding the Fourth Proportional to 273,130.32, 376,923.18 and 158,435.52

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Solution

The fourth proportional to 273,130.32, 376,923.18 and 158,435.52 is: 218,642.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,130.32 : 376,923.18 = 158,435.52 : x
  2. Step 2: Convert to fraction form
    273,130.32/376,923.18 = 158,435.52/x
  3. Step 3: Cross multiply
    273,130.32x = 376,923.18 × 158,435.52
  4. Step 4: Simplify right side
    273,130.32x = 59,718,020,023.35
  5. Step 5: Solve for x
    x = 59,718,020,023.35/273,130.32
  6. Step 6: Final answer
    x = 218,642.95

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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.