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Finding the Fourth Proportional to 173,308.95, 259,972.65 and 54,989.55

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Solution

The fourth proportional to 173,308.95, 259,972.65 and 54,989.55 is: 82,487.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,308.95 : 259,972.65 = 54,989.55 : x
  2. Step 2: Convert to fraction form
    173,308.95/259,972.65 = 54,989.55/x
  3. Step 3: Cross multiply
    173,308.95x = 259,972.65 × 54,989.55
  4. Step 4: Simplify right side
    173,308.95x = 14,295,779,035.81
  5. Step 5: Solve for x
    x = 14,295,779,035.81/173,308.95
  6. Step 6: Final answer
    x = 82,487.25

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1.5x scale

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.