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Finding the Fourth Proportional to 375,303.15, 517,955.28 and 214,182.42

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Solution

The fourth proportional to 375,303.15, 517,955.28 and 214,182.42 is: 295,592.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,303.15 : 517,955.28 = 214,182.42 : x
  2. Step 2: Convert to fraction form
    375,303.15/517,955.28 = 214,182.42/x
  3. Step 3: Cross multiply
    375,303.15x = 517,955.28 × 214,182.42
  4. Step 4: Simplify right side
    375,303.15x = 110,936,915,322.18
  5. Step 5: Solve for x
    x = 110,936,915,322.18/375,303.15
  6. Step 6: Final answer
    x = 295,592.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.