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Finding the Fourth Proportional to 101,735.80, 152,572.49 and 70,347.55

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Solution

The fourth proportional to 101,735.80, 152,572.49 and 70,347.55 is: 105,499.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,735.80 : 152,572.49 = 70,347.55 : x
  2. Step 2: Convert to fraction form
    101,735.80/152,572.49 = 70,347.55/x
  3. Step 3: Cross multiply
    101,735.80x = 152,572.49 × 70,347.55
  4. Step 4: Simplify right side
    101,735.80x = 10,733,100,106.04
  5. Step 5: Solve for x
    x = 10,733,100,106.04/101,735.80
  6. Step 6: Final answer
    x = 105,499.74

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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.