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Finding the Fourth Proportional to 384,003.60, 576,005.40 and 134,710.80

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Solution

The fourth proportional to 384,003.60, 576,005.40 and 134,710.80 is: 202,066.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,003.60 : 576,005.40 = 134,710.80 : x
  2. Step 2: Convert to fraction form
    384,003.60/576,005.40 = 134,710.80/x
  3. Step 3: Cross multiply
    384,003.60x = 576,005.40 × 134,710.80
  4. Step 4: Simplify right side
    384,003.60x = 77,594,148,238.32
  5. Step 5: Solve for x
    x = 77,594,148,238.32/384,003.60
  6. Step 6: Final answer
    x = 202,066.20

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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.