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Finding the Fourth Proportional to 357,056.20, 535,583.76 and 146,545.84

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Solution

The fourth proportional to 357,056.20, 535,583.76 and 146,545.84 is: 219,818.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,056.20 : 535,583.76 = 146,545.84 : x
  2. Step 2: Convert to fraction form
    357,056.20/535,583.76 = 146,545.84/x
  3. Step 3: Cross multiply
    357,056.20x = 535,583.76 × 146,545.84
  4. Step 4: Simplify right side
    357,056.20x = 78,487,571,999.56
  5. Step 5: Solve for x
    x = 78,487,571,999.56/357,056.20
  6. Step 6: Final answer
    x = 219,818.54

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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.