Home / 321,748.93-482,623.35-111,386.80

Finding the Fourth Proportional to 321,748.93, 482,623.35 and 111,386.80

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Solution

The fourth proportional to 321,748.93, 482,623.35 and 111,386.80 is: 167,080.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,748.93 : 482,623.35 = 111,386.80 : x
  2. Step 2: Convert to fraction form
    321,748.93/482,623.35 = 111,386.80/x
  3. Step 3: Cross multiply
    321,748.93x = 482,623.35 × 111,386.80
  4. Step 4: Simplify right side
    321,748.93x = 53,757,870,561.78
  5. Step 5: Solve for x
    x = 53,757,870,561.78/321,748.93
  6. Step 6: Final answer
    x = 167,080.18

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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.