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Finding the Fourth Proportional to 371,510.93, 557,266.40 and 91,025.75

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Solution

The fourth proportional to 371,510.93, 557,266.40 and 91,025.75 is: 136,538.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,510.93 : 557,266.40 = 91,025.75 : x
  2. Step 2: Convert to fraction form
    371,510.93/557,266.40 = 91,025.75/x
  3. Step 3: Cross multiply
    371,510.93x = 557,266.40 × 91,025.75
  4. Step 4: Simplify right side
    371,510.93x = 50,725,592,009.80
  5. Step 5: Solve for x
    x = 50,725,592,009.80/371,510.93
  6. Step 6: Final answer
    x = 136,538.63

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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.