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Finding the Fourth Proportional to 291,940.06, 402,905.19 and 183,061.74

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Solution

The fourth proportional to 291,940.06, 402,905.19 and 183,061.74 is: 252,642.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,940.06 : 402,905.19 = 183,061.74 : x
  2. Step 2: Convert to fraction form
    291,940.06/402,905.19 = 183,061.74/x
  3. Step 3: Cross multiply
    291,940.06x = 402,905.19 × 183,061.74
  4. Step 4: Simplify right side
    291,940.06x = 73,756,525,136.43
  5. Step 5: Solve for x
    x = 73,756,525,136.43/291,940.06
  6. Step 6: Final answer
    x = 252,642.70

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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.