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Finding the Fourth Proportional to 173,329.90, 260,019.15 and 68,124.40

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Solution

The fourth proportional to 173,329.90, 260,019.15 and 68,124.40 is: 102,196.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,329.90 : 260,019.15 = 68,124.40 : x
  2. Step 2: Convert to fraction form
    173,329.90/260,019.15 = 68,124.40/x
  3. Step 3: Cross multiply
    173,329.90x = 260,019.15 × 68,124.40
  4. Step 4: Simplify right side
    173,329.90x = 17,713,648,582.26
  5. Step 5: Solve for x
    x = 17,713,648,582.26/173,329.90
  6. Step 6: Final answer
    x = 102,196.15

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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.