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Finding the Fourth Proportional to 121,598.77, 182,674.95 and 87,968.53

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Solution

The fourth proportional to 121,598.77, 182,674.95 and 87,968.53 is: 132,153.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,598.77 : 182,674.95 = 87,968.53 : x
  2. Step 2: Convert to fraction form
    121,598.77/182,674.95 = 87,968.53/x
  3. Step 3: Cross multiply
    121,598.77x = 182,674.95 × 87,968.53
  4. Step 4: Simplify right side
    121,598.77x = 16,069,646,819.32
  5. Step 5: Solve for x
    x = 16,069,646,819.32/121,598.77
  6. Step 6: Final answer
    x = 132,153.04

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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.