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Finding the Fourth Proportional to 71,420.02, 107,024.45 and 67,426.02

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Solution

The fourth proportional to 71,420.02, 107,024.45 and 67,426.02 is: 101,039.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,420.02 : 107,024.45 = 67,426.02 : x
  2. Step 2: Convert to fraction form
    71,420.02/107,024.45 = 67,426.02/x
  3. Step 3: Cross multiply
    71,420.02x = 107,024.45 × 67,426.02
  4. Step 4: Simplify right side
    71,420.02x = 7,216,232,369.06
  5. Step 5: Solve for x
    x = 7,216,232,369.06/71,420.02
  6. Step 6: Final answer
    x = 101,039.35

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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.