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Finding the Fourth Proportional to 186,398.88, 279,607.54 and 53,298.72

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Solution

The fourth proportional to 186,398.88, 279,607.54 and 53,298.72 is: 79,950.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,398.88 : 279,607.54 = 53,298.72 : x
  2. Step 2: Convert to fraction form
    186,398.88/279,607.54 = 53,298.72/x
  3. Step 3: Cross multiply
    186,398.88x = 279,607.54 × 53,298.72
  4. Step 4: Simplify right side
    186,398.88x = 14,902,723,984.35
  5. Step 5: Solve for x
    x = 14,902,723,984.35/186,398.88
  6. Step 6: Final answer
    x = 79,950.72

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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.