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Finding the Fourth Proportional to 186,321.84, 279,526.08 and 53,203.92

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Solution

The fourth proportional to 186,321.84, 279,526.08 and 53,203.92 is: 79,818.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,321.84 : 279,526.08 = 53,203.92 : x
  2. Step 2: Convert to fraction form
    186,321.84/279,526.08 = 53,203.92/x
  3. Step 3: Cross multiply
    186,321.84x = 279,526.08 × 53,203.92
  4. Step 4: Simplify right side
    186,321.84x = 14,871,883,198.23
  5. Step 5: Solve for x
    x = 14,871,883,198.23/186,321.84
  6. Step 6: Final answer
    x = 79,818.25

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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.