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Finding the Fourth Proportional to 401,323.60, 601,985.40 and 164,544.40

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Solution

The fourth proportional to 401,323.60, 601,985.40 and 164,544.40 is: 246,816.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,323.60 : 601,985.40 = 164,544.40 : x
  2. Step 2: Convert to fraction form
    401,323.60/601,985.40 = 164,544.40/x
  3. Step 3: Cross multiply
    401,323.60x = 601,985.40 × 164,544.40
  4. Step 4: Simplify right side
    401,323.60x = 99,053,326,451.76
  5. Step 5: Solve for x
    x = 99,053,326,451.76/401,323.60
  6. Step 6: Final answer
    x = 246,816.60

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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.