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Finding the Fourth Proportional to 449,792.64, 674,688.69 and 117,368.64

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Solution

The fourth proportional to 449,792.64, 674,688.69 and 117,368.64 is: 176,052.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,792.64 : 674,688.69 = 117,368.64 : x
  2. Step 2: Convert to fraction form
    449,792.64/674,688.69 = 117,368.64/x
  3. Step 3: Cross multiply
    449,792.64x = 674,688.69 × 117,368.64
  4. Step 4: Simplify right side
    449,792.64x = 79,187,293,968.68
  5. Step 5: Solve for x
    x = 79,187,293,968.68/449,792.64
  6. Step 6: Final answer
    x = 176,052.89

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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.