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Finding the Fourth Proportional to 257,083.04, 385,620.42 and 70,094.54

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Solution

The fourth proportional to 257,083.04, 385,620.42 and 70,094.54 is: 105,140.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,083.04 : 385,620.42 = 70,094.54 : x
  2. Step 2: Convert to fraction form
    257,083.04/385,620.42 = 70,094.54/x
  3. Step 3: Cross multiply
    257,083.04x = 385,620.42 × 70,094.54
  4. Step 4: Simplify right side
    257,083.04x = 27,029,885,954.51
  5. Step 5: Solve for x
    x = 27,029,885,954.51/257,083.04
  6. Step 6: Final answer
    x = 105,140.68

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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.