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Finding the Fourth Proportional to 186,354.98, 279,534.90 and 53,239.58

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Solution

The fourth proportional to 186,354.98, 279,534.90 and 53,239.58 is: 79,860.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,354.98 : 279,534.90 = 53,239.58 : x
  2. Step 2: Convert to fraction form
    186,354.98/279,534.90 = 53,239.58/x
  3. Step 3: Cross multiply
    186,354.98x = 279,534.90 × 53,239.58
  4. Step 4: Simplify right side
    186,354.98x = 14,882,320,671.34
  5. Step 5: Solve for x
    x = 14,882,320,671.34/186,354.98
  6. Step 6: Final answer
    x = 79,860.06

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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.