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Finding the Fourth Proportional to 338,090.62, 507,169.94 and 124,914.51

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Solution

The fourth proportional to 338,090.62, 507,169.94 and 124,914.51 is: 187,384.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,090.62 : 507,169.94 = 124,914.51 : x
  2. Step 2: Convert to fraction form
    338,090.62/507,169.94 = 124,914.51/x
  3. Step 3: Cross multiply
    338,090.62x = 507,169.94 × 124,914.51
  4. Step 4: Simplify right side
    338,090.62x = 63,352,881,381.41
  5. Step 5: Solve for x
    x = 63,352,881,381.41/338,090.62
  6. Step 6: Final answer
    x = 187,384.32

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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.