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Finding the Fourth Proportional to 228,316.88, 315,140.63 and 132,842.03

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Solution

The fourth proportional to 228,316.88, 315,140.63 and 132,842.03 is: 183,358.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,316.88 : 315,140.63 = 132,842.03 : x
  2. Step 2: Convert to fraction form
    228,316.88/315,140.63 = 132,842.03/x
  3. Step 3: Cross multiply
    228,316.88x = 315,140.63 × 132,842.03
  4. Step 4: Simplify right side
    228,316.88x = 41,863,918,784.77
  5. Step 5: Solve for x
    x = 41,863,918,784.77/228,316.88
  6. Step 6: Final answer
    x = 183,358.84

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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.