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Finding the Fourth Proportional to 113,784, 170,692.20 and 60,462.06

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Solution

The fourth proportional to 113,784, 170,692.20 and 60,462.06 is: 90,701.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,784 : 170,692.20 = 60,462.06 : x
  2. Step 2: Convert to fraction form
    113,784/170,692.20 = 60,462.06/x
  3. Step 3: Cross multiply
    113,784x = 170,692.20 × 60,462.06
  4. Step 4: Simplify right side
    113,784x = 10,320,402,037.93
  5. Step 5: Solve for x
    x = 10,320,402,037.93/113,784
  6. Step 6: Final answer
    x = 90,701.70

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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.