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Finding the Fourth Proportional to 273,772.71, 377,802.36 and 152,915.72

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Solution

The fourth proportional to 273,772.71, 377,802.36 and 152,915.72 is: 211,021.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,772.71 : 377,802.36 = 152,915.72 : x
  2. Step 2: Convert to fraction form
    273,772.71/377,802.36 = 152,915.72/x
  3. Step 3: Cross multiply
    273,772.71x = 377,802.36 × 152,915.72
  4. Step 4: Simplify right side
    273,772.71x = 57,771,918,008.09
  5. Step 5: Solve for x
    x = 57,771,918,008.09/273,772.71
  6. Step 6: Final answer
    x = 211,021.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.