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Finding the Fourth Proportional to 74,920.90, 112,365.15 and 32,800.90

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Solution

The fourth proportional to 74,920.90, 112,365.15 and 32,800.90 is: 49,194.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,920.90 : 112,365.15 = 32,800.90 : x
  2. Step 2: Convert to fraction form
    74,920.90/112,365.15 = 32,800.90/x
  3. Step 3: Cross multiply
    74,920.90x = 112,365.15 × 32,800.90
  4. Step 4: Simplify right side
    74,920.90x = 3,685,678,048.64
  5. Step 5: Solve for x
    x = 3,685,678,048.64/74,920.90
  6. Step 6: Final answer
    x = 49,194.26

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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.