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Finding the Fourth Proportional to 73,755.90, 101,781.45 and 45,075.45

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Solution

The fourth proportional to 73,755.90, 101,781.45 and 45,075.45 is: 62,203.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,755.90 : 101,781.45 = 45,075.45 : x
  2. Step 2: Convert to fraction form
    73,755.90/101,781.45 = 45,075.45/x
  3. Step 3: Cross multiply
    73,755.90x = 101,781.45 × 45,075.45
  4. Step 4: Simplify right side
    73,755.90x = 4,587,844,660.40
  5. Step 5: Solve for x
    x = 4,587,844,660.40/73,755.90
  6. Step 6: Final answer
    x = 62,203.09

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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.