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Finding the Fourth Proportional to 75,240.66, 112,942.80 and 56,574.22

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Solution

The fourth proportional to 75,240.66, 112,942.80 and 56,574.22 is: 84,922.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,240.66 : 112,942.80 = 56,574.22 : x
  2. Step 2: Convert to fraction form
    75,240.66/112,942.80 = 56,574.22/x
  3. Step 3: Cross multiply
    75,240.66x = 112,942.80 × 56,574.22
  4. Step 4: Simplify right side
    75,240.66x = 6,389,650,814.62
  5. Step 5: Solve for x
    x = 6,389,650,814.62/75,240.66
  6. Step 6: Final answer
    x = 84,922.84

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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.