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Finding the Fourth Proportional to 371,877.76, 557,816.64 and 150,417.28

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Solution

The fourth proportional to 371,877.76, 557,816.64 and 150,417.28 is: 225,625.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,877.76 : 557,816.64 = 150,417.28 : x
  2. Step 2: Convert to fraction form
    371,877.76/557,816.64 = 150,417.28/x
  3. Step 3: Cross multiply
    371,877.76x = 557,816.64 × 150,417.28
  4. Step 4: Simplify right side
    371,877.76x = 83,905,261,727.54
  5. Step 5: Solve for x
    x = 83,905,261,727.54/371,877.76
  6. Step 6: Final answer
    x = 225,625.92

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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.