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Finding the Fourth Proportional to 218,779.30, 328,168.95 and 184,953.70

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Solution

The fourth proportional to 218,779.30, 328,168.95 and 184,953.70 is: 277,430.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,779.30 : 328,168.95 = 184,953.70 : x
  2. Step 2: Convert to fraction form
    218,779.30/328,168.95 = 184,953.70/x
  3. Step 3: Cross multiply
    218,779.30x = 328,168.95 × 184,953.70
  4. Step 4: Simplify right side
    218,779.30x = 60,696,061,527.62
  5. Step 5: Solve for x
    x = 60,696,061,527.62/218,779.30
  6. Step 6: Final answer
    x = 277,430.55

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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.