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Finding the Fourth Proportional to 90,297.88, 134,897.67 and 58,448.46

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Solution

The fourth proportional to 90,297.88, 134,897.67 and 58,448.46 is: 87,317.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,297.88 : 134,897.67 = 58,448.46 : x
  2. Step 2: Convert to fraction form
    90,297.88/134,897.67 = 58,448.46/x
  3. Step 3: Cross multiply
    90,297.88x = 134,897.67 × 58,448.46
  4. Step 4: Simplify right side
    90,297.88x = 7,884,561,069.09
  5. Step 5: Solve for x
    x = 7,884,561,069.09/90,297.88
  6. Step 6: Final answer
    x = 87,317.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.