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Finding the Fourth Proportional to 353,423.20, 530,134.80 and 241,448.80

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Solution

The fourth proportional to 353,423.20, 530,134.80 and 241,448.80 is: 362,173.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,423.20 : 530,134.80 = 241,448.80 : x
  2. Step 2: Convert to fraction form
    353,423.20/530,134.80 = 241,448.80/x
  3. Step 3: Cross multiply
    353,423.20x = 530,134.80 × 241,448.80
  4. Step 4: Simplify right side
    353,423.20x = 128,000,411,298.24
  5. Step 5: Solve for x
    x = 128,000,411,298.24/353,423.20
  6. Step 6: Final answer
    x = 362,173.20

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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.