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Finding the Fourth Proportional to 172,875.44, 238,567.22 and 100,293.01

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Solution

The fourth proportional to 172,875.44, 238,567.22 and 100,293.01 is: 138,403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,875.44 : 238,567.22 = 100,293.01 : x
  2. Step 2: Convert to fraction form
    172,875.44/238,567.22 = 100,293.01/x
  3. Step 3: Cross multiply
    172,875.44x = 238,567.22 × 100,293.01
  4. Step 4: Simplify right side
    172,875.44x = 23,926,624,581.13
  5. Step 5: Solve for x
    x = 23,926,624,581.13/172,875.44
  6. Step 6: Final answer
    x = 138,403.84

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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.