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Finding the Fourth Proportional to 358,715.64, 537,809.94 and 171,858.36

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Solution

The fourth proportional to 358,715.64, 537,809.94 and 171,858.36 is: 257,661.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,715.64 : 537,809.94 = 171,858.36 : x
  2. Step 2: Convert to fraction form
    358,715.64/537,809.94 = 171,858.36/x
  3. Step 3: Cross multiply
    358,715.64x = 537,809.94 × 171,858.36
  4. Step 4: Simplify right side
    358,715.64x = 92,427,134,280.10
  5. Step 5: Solve for x
    x = 92,427,134,280.10/358,715.64
  6. Step 6: Final answer
    x = 257,661.29

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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.