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Finding the Fourth Proportional to 370,971.76, 556,393.02 and 171,275.08

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Solution

The fourth proportional to 370,971.76, 556,393.02 and 171,275.08 is: 256,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,971.76 : 556,393.02 = 171,275.08 : x
  2. Step 2: Convert to fraction form
    370,971.76/556,393.02 = 171,275.08/x
  3. Step 3: Cross multiply
    370,971.76x = 556,393.02 × 171,275.08
  4. Step 4: Simplify right side
    370,971.76x = 95,296,259,011.94
  5. Step 5: Solve for x
    x = 95,296,259,011.94/370,971.76
  6. Step 6: Final answer
    x = 256,882.79

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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.