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Finding the Fourth Proportional to 371,090.89, 556,658.81 and 104,871.33

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Solution

The fourth proportional to 371,090.89, 556,658.81 and 104,871.33 is: 157,313.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,090.89 : 556,658.81 = 104,871.33 : x
  2. Step 2: Convert to fraction form
    371,090.89/556,658.81 = 104,871.33/x
  3. Step 3: Cross multiply
    371,090.89x = 556,658.81 × 104,871.33
  4. Step 4: Simplify right side
    371,090.89x = 58,377,549,760.92
  5. Step 5: Solve for x
    x = 58,377,549,760.92/371,090.89
  6. Step 6: Final answer
    x = 157,313.35

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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.