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Finding the Fourth Proportional to 131,643.84, 197,484.48 and 48,531.36

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Solution

The fourth proportional to 131,643.84, 197,484.48 and 48,531.36 is: 72,803.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,643.84 : 197,484.48 = 48,531.36 : x
  2. Step 2: Convert to fraction form
    131,643.84/197,484.48 = 48,531.36/x
  3. Step 3: Cross multiply
    131,643.84x = 197,484.48 × 48,531.36
  4. Step 4: Simplify right side
    131,643.84x = 9,584,190,393.29
  5. Step 5: Solve for x
    x = 9,584,190,393.29/131,643.84
  6. Step 6: Final answer
    x = 72,803.94

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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.