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Finding the Fourth Proportional to 362,987.10, 543,703.05 and 237,015.90

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Solution

The fourth proportional to 362,987.10, 543,703.05 and 237,015.90 is: 355,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,987.10 : 543,703.05 = 237,015.90 : x
  2. Step 2: Convert to fraction form
    362,987.10/543,703.05 = 237,015.90/x
  3. Step 3: Cross multiply
    362,987.10x = 543,703.05 × 237,015.90
  4. Step 4: Simplify right side
    362,987.10x = 128,866,267,728.50
  5. Step 5: Solve for x
    x = 128,866,267,728.50/362,987.10
  6. Step 6: Final answer
    x = 355,016.11

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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.