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Finding the Fourth Proportional to 179,356.32, 268,902.72 and 85,927.68

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Solution

The fourth proportional to 179,356.32, 268,902.72 and 85,927.68 is: 128,828.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,356.32 : 268,902.72 = 85,927.68 : x
  2. Step 2: Convert to fraction form
    179,356.32/268,902.72 = 85,927.68/x
  3. Step 3: Cross multiply
    179,356.32x = 268,902.72 × 85,927.68
  4. Step 4: Simplify right side
    179,356.32x = 23,106,186,875.29
  5. Step 5: Solve for x
    x = 23,106,186,875.29/179,356.32
  6. Step 6: Final answer
    x = 128,828.40

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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.