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Finding the Fourth Proportional to 131,592.72, 197,415.71 and 42,822.39

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Solution

The fourth proportional to 131,592.72, 197,415.71 and 42,822.39 is: 64,242.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,592.72 : 197,415.71 = 42,822.39 : x
  2. Step 2: Convert to fraction form
    131,592.72/197,415.71 = 42,822.39/x
  3. Step 3: Cross multiply
    131,592.72x = 197,415.71 × 42,822.39
  4. Step 4: Simplify right side
    131,592.72x = 8,453,812,525.75
  5. Step 5: Solve for x
    x = 8,453,812,525.75/131,592.72
  6. Step 6: Final answer
    x = 64,242.25

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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.