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Finding the Fourth Proportional to 156,568.43, 234,750.58 and 66,564.47

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Solution

The fourth proportional to 156,568.43, 234,750.58 and 66,564.47 is: 99,803.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,568.43 : 234,750.58 = 66,564.47 : x
  2. Step 2: Convert to fraction form
    156,568.43/234,750.58 = 66,564.47/x
  3. Step 3: Cross multiply
    156,568.43x = 234,750.58 × 66,564.47
  4. Step 4: Simplify right side
    156,568.43x = 15,626,047,939.89
  5. Step 5: Solve for x
    x = 15,626,047,939.89/156,568.43
  6. Step 6: Final answer
    x = 99,803.31

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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.