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Finding the Fourth Proportional to 272,130.93, 375,548.81 and 164,720.61

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Solution

The fourth proportional to 272,130.93, 375,548.81 and 164,720.61 is: 227,319.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,130.93 : 375,548.81 = 164,720.61 : x
  2. Step 2: Convert to fraction form
    272,130.93/375,548.81 = 164,720.61/x
  3. Step 3: Cross multiply
    272,130.93x = 375,548.81 × 164,720.61
  4. Step 4: Simplify right side
    272,130.93x = 61,860,628,244.37
  5. Step 5: Solve for x
    x = 61,860,628,244.37/272,130.93
  6. Step 6: Final answer
    x = 227,319.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.