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Finding the Fourth Proportional to 319,124.94, 478,687.44 and 186,004.68

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Solution

The fourth proportional to 319,124.94, 478,687.44 and 186,004.68 is: 279,007.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,124.94 : 478,687.44 = 186,004.68 : x
  2. Step 2: Convert to fraction form
    319,124.94/478,687.44 = 186,004.68/x
  3. Step 3: Cross multiply
    319,124.94x = 478,687.44 × 186,004.68
  4. Step 4: Simplify right side
    319,124.94x = 89,038,104,097.22
  5. Step 5: Solve for x
    x = 89,038,104,097.22/319,124.94
  6. Step 6: Final answer
    x = 279,007.04

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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.