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Finding the Fourth Proportional to 292,871.33, 439,316.67 and 100,743.83

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Solution

The fourth proportional to 292,871.33, 439,316.67 and 100,743.83 is: 151,119.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,871.33 : 439,316.67 = 100,743.83 : x
  2. Step 2: Convert to fraction form
    292,871.33/439,316.67 = 100,743.83/x
  3. Step 3: Cross multiply
    292,871.33x = 439,316.67 × 100,743.83
  4. Step 4: Simplify right side
    292,871.33x = 44,258,445,016.94
  5. Step 5: Solve for x
    x = 44,258,445,016.94/292,871.33
  6. Step 6: Final answer
    x = 151,119.08

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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.