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Finding the Fourth Proportional to 310,559.58, 428,587.42 and 174,636.32

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Solution

The fourth proportional to 310,559.58, 428,587.42 and 174,636.32 is: 241,006.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,559.58 : 428,587.42 = 174,636.32 : x
  2. Step 2: Convert to fraction form
    310,559.58/428,587.42 = 174,636.32/x
  3. Step 3: Cross multiply
    310,559.58x = 428,587.42 × 174,636.32
  4. Step 4: Simplify right side
    310,559.58x = 74,846,929,827.09
  5. Step 5: Solve for x
    x = 74,846,929,827.09/310,559.58
  6. Step 6: Final answer
    x = 241,006.67

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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.