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Finding the Fourth Proportional to 140,567.96, 210,851.95 and 40,728.22

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Solution

The fourth proportional to 140,567.96, 210,851.95 and 40,728.22 is: 61,092.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,567.96 : 210,851.95 = 40,728.22 : x
  2. Step 2: Convert to fraction form
    140,567.96/210,851.95 = 40,728.22/x
  3. Step 3: Cross multiply
    140,567.96x = 210,851.95 × 40,728.22
  4. Step 4: Simplify right side
    140,567.96x = 8,587,624,921.50
  5. Step 5: Solve for x
    x = 8,587,624,921.50/140,567.96
  6. Step 6: Final answer
    x = 61,092.33

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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.