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Finding the Fourth Proportional to 384,043.10, 576,064.65 and 134,750.30

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Solution

The fourth proportional to 384,043.10, 576,064.65 and 134,750.30 is: 202,125.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,043.10 : 576,064.65 = 134,750.30 : x
  2. Step 2: Convert to fraction form
    384,043.10/576,064.65 = 134,750.30/x
  3. Step 3: Cross multiply
    384,043.10x = 576,064.65 × 134,750.30
  4. Step 4: Simplify right side
    384,043.10x = 77,624,884,406.90
  5. Step 5: Solve for x
    x = 77,624,884,406.90/384,043.10
  6. Step 6: Final answer
    x = 202,125.45

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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.