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Finding the Fourth Proportional to 237,323.60, 355,985.40 and 221,656.40

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Solution

The fourth proportional to 237,323.60, 355,985.40 and 221,656.40 is: 332,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,323.60 : 355,985.40 = 221,656.40 : x
  2. Step 2: Convert to fraction form
    237,323.60/355,985.40 = 221,656.40/x
  3. Step 3: Cross multiply
    237,323.60x = 355,985.40 × 221,656.40
  4. Step 4: Simplify right side
    237,323.60x = 78,906,442,216.56
  5. Step 5: Solve for x
    x = 78,906,442,216.56/237,323.60
  6. Step 6: Final answer
    x = 332,484.60

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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.