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Finding the Fourth Proportional to 404,902.60, 607,368.30 and 124,419.40

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Solution

The fourth proportional to 404,902.60, 607,368.30 and 124,419.40 is: 186,633.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,902.60 : 607,368.30 = 124,419.40 : x
  2. Step 2: Convert to fraction form
    404,902.60/607,368.30 = 124,419.40/x
  3. Step 3: Cross multiply
    404,902.60x = 607,368.30 × 124,419.40
  4. Step 4: Simplify right side
    404,902.60x = 75,568,399,465.02
  5. Step 5: Solve for x
    x = 75,568,399,465.02/404,902.60
  6. Step 6: Final answer
    x = 186,633.52

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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.