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Finding the Fourth Proportional to 70,883.02, 97,818.60 and 39,051.64

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Solution

The fourth proportional to 70,883.02, 97,818.60 and 39,051.64 is: 53,891.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,883.02 : 97,818.60 = 39,051.64 : x
  2. Step 2: Convert to fraction form
    70,883.02/97,818.60 = 39,051.64/x
  3. Step 3: Cross multiply
    70,883.02x = 97,818.60 × 39,051.64
  4. Step 4: Simplify right side
    70,883.02x = 3,819,976,752.50
  5. Step 5: Solve for x
    x = 3,819,976,752.50/70,883.02
  6. Step 6: Final answer
    x = 53,891.28

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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.