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Finding the Fourth Proportional to 242,564.40, 363,846.60 and 216,903.60

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Solution

The fourth proportional to 242,564.40, 363,846.60 and 216,903.60 is: 325,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,564.40 : 363,846.60 = 216,903.60 : x
  2. Step 2: Convert to fraction form
    242,564.40/363,846.60 = 216,903.60/x
  3. Step 3: Cross multiply
    242,564.40x = 363,846.60 × 216,903.60
  4. Step 4: Simplify right side
    242,564.40x = 78,919,637,387.76
  5. Step 5: Solve for x
    x = 78,919,637,387.76/242,564.40
  6. Step 6: Final answer
    x = 325,355.40

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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.