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Finding the Fourth Proportional to 186,225.30, 279,009.90 and 152,764.20

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Solution

The fourth proportional to 186,225.30, 279,009.90 and 152,764.20 is: 228,877.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,225.30 : 279,009.90 = 152,764.20 : x
  2. Step 2: Convert to fraction form
    186,225.30/279,009.90 = 152,764.20/x
  3. Step 3: Cross multiply
    186,225.30x = 279,009.90 × 152,764.20
  4. Step 4: Simplify right side
    186,225.30x = 42,622,724,165.58
  5. Step 5: Solve for x
    x = 42,622,724,165.58/186,225.30
  6. Step 6: Final answer
    x = 228,877.19

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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.