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Finding the Fourth Proportional to 173,905.70, 260,858.55 and 162,155.30

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Solution

The fourth proportional to 173,905.70, 260,858.55 and 162,155.30 is: 243,232.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,905.70 : 260,858.55 = 162,155.30 : x
  2. Step 2: Convert to fraction form
    173,905.70/260,858.55 = 162,155.30/x
  3. Step 3: Cross multiply
    173,905.70x = 260,858.55 × 162,155.30
  4. Step 4: Simplify right side
    173,905.70x = 42,299,596,432.82
  5. Step 5: Solve for x
    x = 42,299,596,432.82/173,905.70
  6. Step 6: Final answer
    x = 243,232.95

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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.