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Finding the Fourth Proportional to 173,889.60, 260,872.20 and 99,045.60

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Solution

The fourth proportional to 173,889.60, 260,872.20 and 99,045.60 is: 148,589.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,889.60 : 260,872.20 = 99,045.60 : x
  2. Step 2: Convert to fraction form
    173,889.60/260,872.20 = 99,045.60/x
  3. Step 3: Cross multiply
    173,889.60x = 260,872.20 × 99,045.60
  4. Step 4: Simplify right side
    173,889.60x = 25,838,243,572.32
  5. Step 5: Solve for x
    x = 25,838,243,572.32/173,889.60
  6. Step 6: Final answer
    x = 148,589.93

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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.