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Finding the Fourth Proportional to 170,258.61, 255,402.60 and 43,897.74

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Solution

The fourth proportional to 170,258.61, 255,402.60 and 43,897.74 is: 65,850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,258.61 : 255,402.60 = 43,897.74 : x
  2. Step 2: Convert to fraction form
    170,258.61/255,402.60 = 43,897.74/x
  3. Step 3: Cross multiply
    170,258.61x = 255,402.60 × 43,897.74
  4. Step 4: Simplify right side
    170,258.61x = 11,211,596,930.12
  5. Step 5: Solve for x
    x = 11,211,596,930.12/170,258.61
  6. Step 6: Final answer
    x = 65,850.40

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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.