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Finding the Fourth Proportional to 308,133.86, 425,185.62 and 180,762.98

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Solution

The fourth proportional to 308,133.86, 425,185.62 and 180,762.98 is: 249,429.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,133.86 : 425,185.62 = 180,762.98 : x
  2. Step 2: Convert to fraction form
    308,133.86/425,185.62 = 180,762.98/x
  3. Step 3: Cross multiply
    308,133.86x = 425,185.62 × 180,762.98
  4. Step 4: Simplify right side
    308,133.86x = 76,857,819,724.35
  5. Step 5: Solve for x
    x = 76,857,819,724.35/308,133.86
  6. Step 6: Final answer
    x = 249,429.97

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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.