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Finding the Fourth Proportional to 358,787.88, 537,139.26 and 208,570.14

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Solution

The fourth proportional to 358,787.88, 537,139.26 and 208,570.14 is: 312,249.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,787.88 : 537,139.26 = 208,570.14 : x
  2. Step 2: Convert to fraction form
    358,787.88/537,139.26 = 208,570.14/x
  3. Step 3: Cross multiply
    358,787.88x = 537,139.26 × 208,570.14
  4. Step 4: Simplify right side
    358,787.88x = 112,031,210,657.70
  5. Step 5: Solve for x
    x = 112,031,210,657.70/358,787.88
  6. Step 6: Final answer
    x = 312,249.15

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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.