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Finding the Fourth Proportional to 295,027.84, 442,127.04 and 128,466.56

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Solution

The fourth proportional to 295,027.84, 442,127.04 and 128,466.56 is: 192,519.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,027.84 : 442,127.04 = 128,466.56 : x
  2. Step 2: Convert to fraction form
    295,027.84/442,127.04 = 128,466.56/x
  3. Step 3: Cross multiply
    295,027.84x = 442,127.04 × 128,466.56
  4. Step 4: Simplify right side
    295,027.84x = 56,798,539,911.78
  5. Step 5: Solve for x
    x = 56,798,539,911.78/295,027.84
  6. Step 6: Final answer
    x = 192,519.25

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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.