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Finding the Fourth Proportional to 308,503.44, 462,792.60 and 86,887.44

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Solution

The fourth proportional to 308,503.44, 462,792.60 and 86,887.44 is: 130,341.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,503.44 : 462,792.60 = 86,887.44 : x
  2. Step 2: Convert to fraction form
    308,503.44/462,792.60 = 86,887.44/x
  3. Step 3: Cross multiply
    308,503.44x = 462,792.60 × 86,887.44
  4. Step 4: Simplify right side
    308,503.44x = 40,210,864,264.94
  5. Step 5: Solve for x
    x = 40,210,864,264.94/308,503.44
  6. Step 6: Final answer
    x = 130,341.70

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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.