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Finding the Fourth Proportional to 108,075.70, 162,004.20 and 63,679.60

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Solution

The fourth proportional to 108,075.70, 162,004.20 and 63,679.60 is: 95,454.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,075.70 : 162,004.20 = 63,679.60 : x
  2. Step 2: Convert to fraction form
    108,075.70/162,004.20 = 63,679.60/x
  3. Step 3: Cross multiply
    108,075.70x = 162,004.20 × 63,679.60
  4. Step 4: Simplify right side
    108,075.70x = 10,316,362,654.32
  5. Step 5: Solve for x
    x = 10,316,362,654.32/108,075.70
  6. Step 6: Final answer
    x = 95,454.97

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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.