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Finding the Fourth Proportional to 186,135.76, 279,097.71 and 127,043.02

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Solution

The fourth proportional to 186,135.76, 279,097.71 and 127,043.02 is: 190,492.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,135.76 : 279,097.71 = 127,043.02 : x
  2. Step 2: Convert to fraction form
    186,135.76/279,097.71 = 127,043.02/x
  3. Step 3: Cross multiply
    186,135.76x = 279,097.71 × 127,043.02
  4. Step 4: Simplify right side
    186,135.76x = 35,457,415,953.48
  5. Step 5: Solve for x
    x = 35,457,415,953.48/186,135.76
  6. Step 6: Final answer
    x = 190,492.23

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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.