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Finding the Fourth Proportional to 67,477.20, 101,215.80 and 62,408.40

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Solution

The fourth proportional to 67,477.20, 101,215.80 and 62,408.40 is: 93,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,477.20 : 101,215.80 = 62,408.40 : x
  2. Step 2: Convert to fraction form
    67,477.20/101,215.80 = 62,408.40/x
  3. Step 3: Cross multiply
    67,477.20x = 101,215.80 × 62,408.40
  4. Step 4: Simplify right side
    67,477.20x = 6,316,716,132.72
  5. Step 5: Solve for x
    x = 6,316,716,132.72/67,477.20
  6. Step 6: Final answer
    x = 93,612.60

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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.