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Finding the Fourth Proportional to 352,885.65, 486,985.16 and 191,740.70

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Solution

The fourth proportional to 352,885.65, 486,985.16 and 191,740.70 is: 264,603.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,885.65 : 486,985.16 = 191,740.70 : x
  2. Step 2: Convert to fraction form
    352,885.65/486,985.16 = 191,740.70/x
  3. Step 3: Cross multiply
    352,885.65x = 486,985.16 × 191,740.70
  4. Step 4: Simplify right side
    352,885.65x = 93,374,874,748.42
  5. Step 5: Solve for x
    x = 93,374,874,748.42/352,885.65
  6. Step 6: Final answer
    x = 264,603.77

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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.