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Finding the Fourth Proportional to 100,398.33, 150,392.47 and 56,048.71

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Solution

The fourth proportional to 100,398.33, 150,392.47 and 56,048.71 is: 83,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,398.33 : 150,392.47 = 56,048.71 : x
  2. Step 2: Convert to fraction form
    100,398.33/150,392.47 = 56,048.71/x
  3. Step 3: Cross multiply
    100,398.33x = 150,392.47 × 56,048.71
  4. Step 4: Simplify right side
    100,398.33x = 8,429,303,421.11
  5. Step 5: Solve for x
    x = 8,429,303,421.11/100,398.33
  6. Step 6: Final answer
    x = 83,958.60

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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.