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Finding the Fourth Proportional to 372,112.40, 556,856.40 and 254,014.40

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Solution

The fourth proportional to 372,112.40, 556,856.40 and 254,014.40 is: 380,125.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,112.40 : 556,856.40 = 254,014.40 : x
  2. Step 2: Convert to fraction form
    372,112.40/556,856.40 = 254,014.40/x
  3. Step 3: Cross multiply
    372,112.40x = 556,856.40 × 254,014.40
  4. Step 4: Simplify right side
    372,112.40x = 141,449,544,332.16
  5. Step 5: Solve for x
    x = 141,449,544,332.16/372,112.40
  6. Step 6: Final answer
    x = 380,125.86

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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.