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Finding the Fourth Proportional to 173,493.70, 260,240.55 and 42,165.70

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Solution

The fourth proportional to 173,493.70, 260,240.55 and 42,165.70 is: 63,248.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,493.70 : 260,240.55 = 42,165.70 : x
  2. Step 2: Convert to fraction form
    173,493.70/260,240.55 = 42,165.70/x
  3. Step 3: Cross multiply
    173,493.70x = 260,240.55 × 42,165.70
  4. Step 4: Simplify right side
    173,493.70x = 10,973,224,959.14
  5. Step 5: Solve for x
    x = 10,973,224,959.14/173,493.70
  6. Step 6: Final answer
    x = 63,248.55

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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.