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Finding the Fourth Proportional to 186,621.84, 279,875.34 and 53,466.39

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Solution

The fourth proportional to 186,621.84, 279,875.34 and 53,466.39 is: 80,183.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,621.84 : 279,875.34 = 53,466.39 : x
  2. Step 2: Convert to fraction form
    186,621.84/279,875.34 = 53,466.39/x
  3. Step 3: Cross multiply
    186,621.84x = 279,875.34 × 53,466.39
  4. Step 4: Simplify right side
    186,621.84x = 14,963,924,079.82
  5. Step 5: Solve for x
    x = 14,963,924,079.82/186,621.84
  6. Step 6: Final answer
    x = 80,183.13

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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.