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Finding the Fourth Proportional to 328,812.68, 492,922.82 and 118,302.50

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Solution

The fourth proportional to 328,812.68, 492,922.82 and 118,302.50 is: 177,347.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,812.68 : 492,922.82 = 118,302.50 : x
  2. Step 2: Convert to fraction form
    328,812.68/492,922.82 = 118,302.50/x
  3. Step 3: Cross multiply
    328,812.68x = 492,922.82 × 118,302.50
  4. Step 4: Simplify right side
    328,812.68x = 58,314,001,913.05
  5. Step 5: Solve for x
    x = 58,314,001,913.05/328,812.68
  6. Step 6: Final answer
    x = 177,347.18

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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.