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Finding the Fourth Proportional to 285,189.69, 393,828.54 and 183,392.01

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Solution

The fourth proportional to 285,189.69, 393,828.54 and 183,392.01 is: 253,252.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,189.69 : 393,828.54 = 183,392.01 : x
  2. Step 2: Convert to fraction form
    285,189.69/393,828.54 = 183,392.01/x
  3. Step 3: Cross multiply
    285,189.69x = 393,828.54 × 183,392.01
  4. Step 4: Simplify right side
    285,189.69x = 72,225,008,142.67
  5. Step 5: Solve for x
    x = 72,225,008,142.67/285,189.69
  6. Step 6: Final answer
    x = 253,252.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.