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Finding the Fourth Proportional to 459,376.53, 689,262.44 and 159,693.95

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Solution

The fourth proportional to 459,376.53, 689,262.44 and 159,693.95 is: 239,609.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,376.53 : 689,262.44 = 159,693.95 : x
  2. Step 2: Convert to fraction form
    459,376.53/689,262.44 = 159,693.95/x
  3. Step 3: Cross multiply
    459,376.53x = 689,262.44 × 159,693.95
  4. Step 4: Simplify right side
    459,376.53x = 110,071,037,385.46
  5. Step 5: Solve for x
    x = 110,071,037,385.46/459,376.53
  6. Step 6: Final answer
    x = 239,609.62

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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.