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Finding the Fourth Proportional to 101,820.30, 152,669.70 and 62,405.70

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Solution

The fourth proportional to 101,820.30, 152,669.70 and 62,405.70 is: 93,571.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,820.30 : 152,669.70 = 62,405.70 : x
  2. Step 2: Convert to fraction form
    101,820.30/152,669.70 = 62,405.70/x
  3. Step 3: Cross multiply
    101,820.30x = 152,669.70 × 62,405.70
  4. Step 4: Simplify right side
    101,820.30x = 9,527,459,497.29
  5. Step 5: Solve for x
    x = 9,527,459,497.29/101,820.30
  6. Step 6: Final answer
    x = 93,571.32

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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.