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Finding the Fourth Proportional to 75,245.48, 103,802.99 and 45,024.72

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Solution

The fourth proportional to 75,245.48, 103,802.99 and 45,024.72 is: 62,112.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,245.48 : 103,802.99 = 45,024.72 : x
  2. Step 2: Convert to fraction form
    75,245.48/103,802.99 = 45,024.72/x
  3. Step 3: Cross multiply
    75,245.48x = 103,802.99 × 45,024.72
  4. Step 4: Simplify right side
    75,245.48x = 4,673,699,945.53
  5. Step 5: Solve for x
    x = 4,673,699,945.53/75,245.48
  6. Step 6: Final answer
    x = 62,112.70

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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.