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Finding the Fourth Proportional to 355,536.40, 533,381.40 and 106,243.60

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Solution

The fourth proportional to 355,536.40, 533,381.40 and 106,243.60 is: 159,388.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,536.40 : 533,381.40 = 106,243.60 : x
  2. Step 2: Convert to fraction form
    355,536.40/533,381.40 = 106,243.60/x
  3. Step 3: Cross multiply
    355,536.40x = 533,381.40 × 106,243.60
  4. Step 4: Simplify right side
    355,536.40x = 56,668,360,109.04
  5. Step 5: Solve for x
    x = 56,668,360,109.04/355,536.40
  6. Step 6: Final answer
    x = 159,388.35

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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.