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Finding the Fourth Proportional to 88,926.40, 133,216.80 and 49,412.80

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Solution

The fourth proportional to 88,926.40, 133,216.80 and 49,412.80 is: 74,023.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,926.40 : 133,216.80 = 49,412.80 : x
  2. Step 2: Convert to fraction form
    88,926.40/133,216.80 = 49,412.80/x
  3. Step 3: Cross multiply
    88,926.40x = 133,216.80 × 49,412.80
  4. Step 4: Simplify right side
    88,926.40x = 6,582,615,095.04
  5. Step 5: Solve for x
    x = 6,582,615,095.04/88,926.40
  6. Step 6: Final answer
    x = 74,023.18

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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.