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Finding the Fourth Proportional to 186,135.60, 279,203.40 and 134,036.40

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Solution

The fourth proportional to 186,135.60, 279,203.40 and 134,036.40 is: 201,054.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,135.60 : 279,203.40 = 134,036.40 : x
  2. Step 2: Convert to fraction form
    186,135.60/279,203.40 = 134,036.40/x
  3. Step 3: Cross multiply
    186,135.60x = 279,203.40 × 134,036.40
  4. Step 4: Simplify right side
    186,135.60x = 37,423,418,603.76
  5. Step 5: Solve for x
    x = 37,423,418,603.76/186,135.60
  6. Step 6: Final answer
    x = 201,054.60

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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.