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Finding the Fourth Proportional to 75,710.87, 104,522.90 and 45,503.54

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Solution

The fourth proportional to 75,710.87, 104,522.90 and 45,503.54 is: 62,820.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,710.87 : 104,522.90 = 45,503.54 : x
  2. Step 2: Convert to fraction form
    75,710.87/104,522.90 = 45,503.54/x
  3. Step 3: Cross multiply
    75,710.87x = 104,522.90 × 45,503.54
  4. Step 4: Simplify right side
    75,710.87x = 4,756,161,210.93
  5. Step 5: Solve for x
    x = 4,756,161,210.93/75,710.87
  6. Step 6: Final answer
    x = 62,820.06

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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.