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Finding the Fourth Proportional to 74,879.20, 103,341.04 and 45,824.48

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Solution

The fourth proportional to 74,879.20, 103,341.04 and 45,824.48 is: 63,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,879.20 : 103,341.04 = 45,824.48 : x
  2. Step 2: Convert to fraction form
    74,879.20/103,341.04 = 45,824.48/x
  3. Step 3: Cross multiply
    74,879.20x = 103,341.04 × 45,824.48
  4. Step 4: Simplify right side
    74,879.20x = 4,735,549,420.66
  5. Step 5: Solve for x
    x = 4,735,549,420.66/74,879.20
  6. Step 6: Final answer
    x = 63,242.52

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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.