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Finding the Fourth Proportional to 101,760.84, 152,602.90 and 42,600.60

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Solution

The fourth proportional to 101,760.84, 152,602.90 and 42,600.60 is: 63,884.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,760.84 : 152,602.90 = 42,600.60 : x
  2. Step 2: Convert to fraction form
    101,760.84/152,602.90 = 42,600.60/x
  3. Step 3: Cross multiply
    101,760.84x = 152,602.90 × 42,600.60
  4. Step 4: Simplify right side
    101,760.84x = 6,500,975,101.74
  5. Step 5: Solve for x
    x = 6,500,975,101.74/101,760.84
  6. Step 6: Final answer
    x = 63,884.84

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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.