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Finding the Fourth Proportional to 358,043.43, 537,065.15 and 170,486.31

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Solution

The fourth proportional to 358,043.43, 537,065.15 and 170,486.31 is: 255,729.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,043.43 : 537,065.15 = 170,486.31 : x
  2. Step 2: Convert to fraction form
    358,043.43/537,065.15 = 170,486.31/x
  3. Step 3: Cross multiply
    358,043.43x = 537,065.15 × 170,486.31
  4. Step 4: Simplify right side
    358,043.43x = 91,562,254,800.67
  5. Step 5: Solve for x
    x = 91,562,254,800.67/358,043.43
  6. Step 6: Final answer
    x = 255,729.47

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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.