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Finding the Fourth Proportional to 305,901.10, 458,851.65 and 221,482.90

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Solution

The fourth proportional to 305,901.10, 458,851.65 and 221,482.90 is: 332,224.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,901.10 : 458,851.65 = 221,482.90 : x
  2. Step 2: Convert to fraction form
    305,901.10/458,851.65 = 221,482.90/x
  3. Step 3: Cross multiply
    305,901.10x = 458,851.65 × 221,482.90
  4. Step 4: Simplify right side
    305,901.10x = 101,627,794,111.79
  5. Step 5: Solve for x
    x = 101,627,794,111.79/305,901.10
  6. Step 6: Final answer
    x = 332,224.35

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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.