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Finding the Fourth Proportional to 190,166.60, 284,904.30 and 154,915.40

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Solution

The fourth proportional to 190,166.60, 284,904.30 and 154,915.40 is: 232,091.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,166.60 : 284,904.30 = 154,915.40 : x
  2. Step 2: Convert to fraction form
    190,166.60/284,904.30 = 154,915.40/x
  3. Step 3: Cross multiply
    190,166.60x = 284,904.30 × 154,915.40
  4. Step 4: Simplify right side
    190,166.60x = 44,136,063,596.22
  5. Step 5: Solve for x
    x = 44,136,063,596.22/190,166.60
  6. Step 6: Final answer
    x = 232,091.56

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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.