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Finding the Fourth Proportional to 74,661.20, 103,036.20 and 44,464.40

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Solution

The fourth proportional to 74,661.20, 103,036.20 and 44,464.40 is: 61,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,661.20 : 103,036.20 = 44,464.40 : x
  2. Step 2: Convert to fraction form
    74,661.20/103,036.20 = 44,464.40/x
  3. Step 3: Cross multiply
    74,661.20x = 103,036.20 × 44,464.40
  4. Step 4: Simplify right side
    74,661.20x = 4,581,442,811.28
  5. Step 5: Solve for x
    x = 4,581,442,811.28/74,661.20
  6. Step 6: Final answer
    x = 61,363.10

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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.