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Finding the Fourth Proportional to 617,509.18, 926,134.17 and 174,173.50

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Solution

The fourth proportional to 617,509.18, 926,134.17 and 174,173.50 is: 261,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,509.18 : 926,134.17 = 174,173.50 : x
  2. Step 2: Convert to fraction form
    617,509.18/926,134.17 = 174,173.50/x
  3. Step 3: Cross multiply
    617,509.18x = 926,134.17 × 174,173.50
  4. Step 4: Simplify right side
    617,509.18x = 161,308,029,858.50
  5. Step 5: Solve for x
    x = 161,308,029,858.50/617,509.18
  6. Step 6: Final answer
    x = 261,223.70

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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.