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Finding the Fourth Proportional to 356,806.40, 535,281.60 and 104,086.40

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Solution

The fourth proportional to 356,806.40, 535,281.60 and 104,086.40 is: 156,150.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,806.40 : 535,281.60 = 104,086.40 : x
  2. Step 2: Convert to fraction form
    356,806.40/535,281.60 = 104,086.40/x
  3. Step 3: Cross multiply
    356,806.40x = 535,281.60 × 104,086.40
  4. Step 4: Simplify right side
    356,806.40x = 55,715,534,730.24
  5. Step 5: Solve for x
    x = 55,715,534,730.24/356,806.40
  6. Step 6: Final answer
    x = 156,150.60

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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.