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Finding the Fourth Proportional to 305,963.55, 458,767.13 and 118,756.35

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Solution

The fourth proportional to 305,963.55, 458,767.13 and 118,756.35 is: 178,065.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,963.55 : 458,767.13 = 118,756.35 : x
  2. Step 2: Convert to fraction form
    305,963.55/458,767.13 = 118,756.35/x
  3. Step 3: Cross multiply
    305,963.55x = 458,767.13 × 118,756.35
  4. Step 4: Simplify right side
    305,963.55x = 54,481,509,264.99
  5. Step 5: Solve for x
    x = 54,481,509,264.99/305,963.55
  6. Step 6: Final answer
    x = 178,065.36

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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.