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Finding the Fourth Proportional to 315,686.40, 473,526.36 and 182,481.90

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Solution

The fourth proportional to 315,686.40, 473,526.36 and 182,481.90 is: 273,720.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,686.40 : 473,526.36 = 182,481.90 : x
  2. Step 2: Convert to fraction form
    315,686.40/473,526.36 = 182,481.90/x
  3. Step 3: Cross multiply
    315,686.40x = 473,526.36 × 182,481.90
  4. Step 4: Simplify right side
    315,686.40x = 86,409,989,872.88
  5. Step 5: Solve for x
    x = 86,409,989,872.88/315,686.40
  6. Step 6: Final answer
    x = 273,720.98

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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.