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Finding the Fourth Proportional to 101,735.55, 152,572.12 and 70,347.30

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Solution

The fourth proportional to 101,735.55, 152,572.12 and 70,347.30 is: 105,499.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,735.55 : 152,572.12 = 70,347.30 : x
  2. Step 2: Convert to fraction form
    101,735.55/152,572.12 = 70,347.30/x
  3. Step 3: Cross multiply
    101,735.55x = 152,572.12 × 70,347.30
  4. Step 4: Simplify right side
    101,735.55x = 10,733,036,697.28
  5. Step 5: Solve for x
    x = 10,733,036,697.28/101,735.55
  6. Step 6: Final answer
    x = 105,499.37

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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.