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Finding the Fourth Proportional to 74,488.80, 102,783.81 and 43,843.65

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Solution

The fourth proportional to 74,488.80, 102,783.81 and 43,843.65 is: 60,497.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,488.80 : 102,783.81 = 43,843.65 : x
  2. Step 2: Convert to fraction form
    74,488.80/102,783.81 = 43,843.65/x
  3. Step 3: Cross multiply
    74,488.80x = 102,783.81 × 43,843.65
  4. Step 4: Simplify right side
    74,488.80x = 4,506,417,391.31
  5. Step 5: Solve for x
    x = 4,506,417,391.31/74,488.80
  6. Step 6: Final answer
    x = 60,497.92

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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.