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Finding the Fourth Proportional to 108,232.60, 162,348.90 and 70,907.80

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Solution

The fourth proportional to 108,232.60, 162,348.90 and 70,907.80 is: 106,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,232.60 : 162,348.90 = 70,907.80 : x
  2. Step 2: Convert to fraction form
    108,232.60/162,348.90 = 70,907.80/x
  3. Step 3: Cross multiply
    108,232.60x = 162,348.90 × 70,907.80
  4. Step 4: Simplify right side
    108,232.60x = 11,511,803,331.42
  5. Step 5: Solve for x
    x = 11,511,803,331.42/108,232.60
  6. Step 6: Final answer
    x = 106,361.70

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1.5x scale

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.