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Finding the Fourth Proportional to 90,496.58, 124,843.28 and 56,483.06

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Solution

The fourth proportional to 90,496.58, 124,843.28 and 56,483.06 is: 77,920.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,496.58 : 124,843.28 = 56,483.06 : x
  2. Step 2: Convert to fraction form
    90,496.58/124,843.28 = 56,483.06/x
  3. Step 3: Cross multiply
    90,496.58x = 124,843.28 × 56,483.06
  4. Step 4: Simplify right side
    90,496.58x = 7,051,530,474.84
  5. Step 5: Solve for x
    x = 7,051,530,474.84/90,496.58
  6. Step 6: Final answer
    x = 77,920.41

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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.