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Finding the Fourth Proportional to 113,199.94, 156,235.26 and 65,482.30

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Solution

The fourth proportional to 113,199.94, 156,235.26 and 65,482.30 is: 90,376.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,199.94 : 156,235.26 = 65,482.30 : x
  2. Step 2: Convert to fraction form
    113,199.94/156,235.26 = 65,482.30/x
  3. Step 3: Cross multiply
    113,199.94x = 156,235.26 × 65,482.30
  4. Step 4: Simplify right side
    113,199.94x = 10,230,644,165.90
  5. Step 5: Solve for x
    x = 10,230,644,165.90/113,199.94
  6. Step 6: Final answer
    x = 90,376.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.