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Finding the Fourth Proportional to 356,751.88, 492,650.66 and 229,648.04

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Solution

The fourth proportional to 356,751.88, 492,650.66 and 229,648.04 is: 317,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,751.88 : 492,650.66 = 229,648.04 : x
  2. Step 2: Convert to fraction form
    356,751.88/492,650.66 = 229,648.04/x
  3. Step 3: Cross multiply
    356,751.88x = 492,650.66 × 229,648.04
  4. Step 4: Simplify right side
    356,751.88x = 113,136,258,473.71
  5. Step 5: Solve for x
    x = 113,136,258,473.71/356,751.88
  6. Step 6: Final answer
    x = 317,128.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.