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Finding the Fourth Proportional to 333,285.84, 499,980.60 and 111,618

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Solution

The fourth proportional to 333,285.84, 499,980.60 and 111,618 is: 167,444.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,285.84 : 499,980.60 = 111,618 : x
  2. Step 2: Convert to fraction form
    333,285.84/499,980.60 = 111,618/x
  3. Step 3: Cross multiply
    333,285.84x = 499,980.60 × 111,618
  4. Step 4: Simplify right side
    333,285.84x = 55,806,834,610.80
  5. Step 5: Solve for x
    x = 55,806,834,610.80/333,285.84
  6. Step 6: Final answer
    x = 167,444.36

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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.