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Finding the Fourth Proportional to 75,297.90, 112,953.84 and 53,749.58

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Solution

The fourth proportional to 75,297.90, 112,953.84 and 53,749.58 is: 80,629.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,297.90 : 112,953.84 = 53,749.58 : x
  2. Step 2: Convert to fraction form
    75,297.90/112,953.84 = 53,749.58/x
  3. Step 3: Cross multiply
    75,297.90x = 112,953.84 × 53,749.58
  4. Step 4: Simplify right side
    75,297.90x = 6,071,221,459.39
  5. Step 5: Solve for x
    x = 6,071,221,459.39/75,297.90
  6. Step 6: Final answer
    x = 80,629.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.