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Finding the Fourth Proportional to 358,225.16, 494,145.43 and 223,855.88

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Solution

The fourth proportional to 358,225.16, 494,145.43 and 223,855.88 is: 308,792.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,225.16 : 494,145.43 = 223,855.88 : x
  2. Step 2: Convert to fraction form
    358,225.16/494,145.43 = 223,855.88/x
  3. Step 3: Cross multiply
    358,225.16x = 494,145.43 × 223,855.88
  4. Step 4: Simplify right side
    358,225.16x = 110,617,357,050.26
  5. Step 5: Solve for x
    x = 110,617,357,050.26/358,225.16
  6. Step 6: Final answer
    x = 308,792.82

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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.