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Finding the Fourth Proportional to 207,002.40, 310,503.60 and 197,160.90

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Solution

The fourth proportional to 207,002.40, 310,503.60 and 197,160.90 is: 295,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,002.40 : 310,503.60 = 197,160.90 : x
  2. Step 2: Convert to fraction form
    207,002.40/310,503.60 = 197,160.90/x
  3. Step 3: Cross multiply
    207,002.40x = 310,503.60 × 197,160.90
  4. Step 4: Simplify right side
    207,002.40x = 61,219,169,229.24
  5. Step 5: Solve for x
    x = 61,219,169,229.24/207,002.40
  6. Step 6: Final answer
    x = 295,741.35

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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.