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Finding the Fourth Proportional to 70,908.12, 97,851.24 and 39,077.01

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Solution

The fourth proportional to 70,908.12, 97,851.24 and 39,077.01 is: 53,925.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,908.12 : 97,851.24 = 39,077.01 : x
  2. Step 2: Convert to fraction form
    70,908.12/97,851.24 = 39,077.01/x
  3. Step 3: Cross multiply
    70,908.12x = 97,851.24 × 39,077.01
  4. Step 4: Simplify right side
    70,908.12x = 3,823,733,883.99
  5. Step 5: Solve for x
    x = 3,823,733,883.99/70,908.12
  6. Step 6: Final answer
    x = 53,925.19

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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.