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Finding the Fourth Proportional to 355,154.99, 532,548.53 and 130,457.39

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Solution

The fourth proportional to 355,154.99, 532,548.53 and 130,457.39 is: 195,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,154.99 : 532,548.53 = 130,457.39 : x
  2. Step 2: Convert to fraction form
    355,154.99/532,548.53 = 130,457.39/x
  3. Step 3: Cross multiply
    355,154.99x = 532,548.53 × 130,457.39
  4. Step 4: Simplify right side
    355,154.99x = 69,474,890,619.85
  5. Step 5: Solve for x
    x = 69,474,890,619.85/355,154.99
  6. Step 6: Final answer
    x = 195,618.51

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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.