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Finding the Fourth Proportional to 186,388.22, 279,349.02 and 146,788.94

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Solution

The fourth proportional to 186,388.22, 279,349.02 and 146,788.94 is: 219,999.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,388.22 : 279,349.02 = 146,788.94 : x
  2. Step 2: Convert to fraction form
    186,388.22/279,349.02 = 146,788.94/x
  3. Step 3: Cross multiply
    186,388.22x = 279,349.02 × 146,788.94
  4. Step 4: Simplify right side
    186,388.22x = 41,005,346,535.84
  5. Step 5: Solve for x
    x = 41,005,346,535.84/186,388.22
  6. Step 6: Final answer
    x = 219,999.67

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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.