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Finding the Fourth Proportional to 267,128.50, 368,621.05 and 146,271.24

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Solution

The fourth proportional to 267,128.50, 368,621.05 and 146,271.24 is: 201,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,128.50 : 368,621.05 = 146,271.24 : x
  2. Step 2: Convert to fraction form
    267,128.50/368,621.05 = 146,271.24/x
  3. Step 3: Cross multiply
    267,128.50x = 368,621.05 × 146,271.24
  4. Step 4: Simplify right side
    267,128.50x = 53,918,658,073.60
  5. Step 5: Solve for x
    x = 53,918,658,073.60/267,128.50
  6. Step 6: Final answer
    x = 201,845.40

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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.