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Finding the Fourth Proportional to 145,915.89, 218,880.54 and 44,706.69

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Solution

The fourth proportional to 145,915.89, 218,880.54 and 44,706.69 is: 67,062.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,915.89 : 218,880.54 = 44,706.69 : x
  2. Step 2: Convert to fraction form
    145,915.89/218,880.54 = 44,706.69/x
  3. Step 3: Cross multiply
    145,915.89x = 218,880.54 × 44,706.69
  4. Step 4: Simplify right side
    145,915.89x = 9,785,424,448.81
  5. Step 5: Solve for x
    x = 9,785,424,448.81/145,915.89
  6. Step 6: Final answer
    x = 67,062.09

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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.