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Finding the Fourth Proportional to 186,453.66, 279,572.49 and 127,360.74

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Solution

The fourth proportional to 186,453.66, 279,572.49 and 127,360.74 is: 190,967.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,453.66 : 279,572.49 = 127,360.74 : x
  2. Step 2: Convert to fraction form
    186,453.66/279,572.49 = 127,360.74/x
  3. Step 3: Cross multiply
    186,453.66x = 279,572.49 × 127,360.74
  4. Step 4: Simplify right side
    186,453.66x = 35,606,559,210.04
  5. Step 5: Solve for x
    x = 35,606,559,210.04/186,453.66
  6. Step 6: Final answer
    x = 190,967.34

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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.