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Finding the Fourth Proportional to 329,699.16, 494,543.32 and 105,056.56

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Solution

The fourth proportional to 329,699.16, 494,543.32 and 105,056.56 is: 157,583.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,699.16 : 494,543.32 = 105,056.56 : x
  2. Step 2: Convert to fraction form
    329,699.16/494,543.32 = 105,056.56/x
  3. Step 3: Cross multiply
    329,699.16x = 494,543.32 × 105,056.56
  4. Step 4: Simplify right side
    329,699.16x = 51,955,019,970.18
  5. Step 5: Solve for x
    x = 51,955,019,970.18/329,699.16
  6. Step 6: Final answer
    x = 157,583.11

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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.