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Finding the Fourth Proportional to 186,088.47, 279,090.79 and 52,965.78

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Solution

The fourth proportional to 186,088.47, 279,090.79 and 52,965.78 is: 79,436.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,088.47 : 279,090.79 = 52,965.78 : x
  2. Step 2: Convert to fraction form
    186,088.47/279,090.79 = 52,965.78/x
  3. Step 3: Cross multiply
    186,088.47x = 279,090.79 × 52,965.78
  4. Step 4: Simplify right side
    186,088.47x = 14,782,261,250.75
  5. Step 5: Solve for x
    x = 14,782,261,250.75/186,088.47
  6. Step 6: Final answer
    x = 79,436.74

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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.