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Finding the Fourth Proportional to 74,658.40, 103,028.60 and 41,124.40

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Solution

The fourth proportional to 74,658.40, 103,028.60 and 41,124.40 is: 56,751.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,658.40 : 103,028.60 = 41,124.40 : x
  2. Step 2: Convert to fraction form
    74,658.40/103,028.60 = 41,124.40/x
  3. Step 3: Cross multiply
    74,658.40x = 103,028.60 × 41,124.40
  4. Step 4: Simplify right side
    74,658.40x = 4,236,989,357.84
  5. Step 5: Solve for x
    x = 4,236,989,357.84/74,658.40
  6. Step 6: Final answer
    x = 56,751.68

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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.