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Finding the Fourth Proportional to 173,830.80, 260,746.20 and 68,636.10

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Solution

The fourth proportional to 173,830.80, 260,746.20 and 68,636.10 is: 102,954.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,830.80 : 260,746.20 = 68,636.10 : x
  2. Step 2: Convert to fraction form
    173,830.80/260,746.20 = 68,636.10/x
  3. Step 3: Cross multiply
    173,830.80x = 260,746.20 × 68,636.10
  4. Step 4: Simplify right side
    173,830.80x = 17,896,602,257.82
  5. Step 5: Solve for x
    x = 17,896,602,257.82/173,830.80
  6. Step 6: Final answer
    x = 102,954.15

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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.