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Finding the Fourth Proportional to 131,703.48, 197,575.74 and 42,936.48

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Solution

The fourth proportional to 131,703.48, 197,575.74 and 42,936.48 is: 64,411.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,703.48 : 197,575.74 = 42,936.48 : x
  2. Step 2: Convert to fraction form
    131,703.48/197,575.74 = 42,936.48/x
  3. Step 3: Cross multiply
    131,703.48x = 197,575.74 × 42,936.48
  4. Step 4: Simplify right side
    131,703.48x = 8,483,206,809.00
  5. Step 5: Solve for x
    x = 8,483,206,809.00/131,703.48
  6. Step 6: Final answer
    x = 64,411.41

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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.