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Finding the Fourth Proportional to 74,793.50, 103,216.98 and 40,802.54

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Solution

The fourth proportional to 74,793.50, 103,216.98 and 40,802.54 is: 56,308.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,793.50 : 103,216.98 = 40,802.54 : x
  2. Step 2: Convert to fraction form
    74,793.50/103,216.98 = 40,802.54/x
  3. Step 3: Cross multiply
    74,793.50x = 103,216.98 × 40,802.54
  4. Step 4: Simplify right side
    74,793.50x = 4,211,514,955.13
  5. Step 5: Solve for x
    x = 4,211,514,955.13/74,793.50
  6. Step 6: Final answer
    x = 56,308.57

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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.