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Finding the Fourth Proportional to 173,724.60, 260,586.90 and 118,428.60

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Solution

The fourth proportional to 173,724.60, 260,586.90 and 118,428.60 is: 177,642.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,724.60 : 260,586.90 = 118,428.60 : x
  2. Step 2: Convert to fraction form
    173,724.60/260,586.90 = 118,428.60/x
  3. Step 3: Cross multiply
    173,724.60x = 260,586.90 × 118,428.60
  4. Step 4: Simplify right side
    173,724.60x = 30,860,941,745.34
  5. Step 5: Solve for x
    x = 30,860,941,745.34/173,724.60
  6. Step 6: Final answer
    x = 177,642.90

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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.