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Finding the Fourth Proportional to 370,003.39, 555,074.28 and 117,216

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Solution

The fourth proportional to 370,003.39, 555,074.28 and 117,216 is: 175,845.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,003.39 : 555,074.28 = 117,216 : x
  2. Step 2: Convert to fraction form
    370,003.39/555,074.28 = 117,216/x
  3. Step 3: Cross multiply
    370,003.39x = 555,074.28 × 117,216
  4. Step 4: Simplify right side
    370,003.39x = 65,063,586,804.48
  5. Step 5: Solve for x
    x = 65,063,586,804.48/370,003.39
  6. Step 6: Final answer
    x = 175,845.92

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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.