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Finding the Fourth Proportional to 70,950.53, 97,911.62 and 39,119.51

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Solution

The fourth proportional to 70,950.53, 97,911.62 and 39,119.51 is: 53,984.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,950.53 : 97,911.62 = 39,119.51 : x
  2. Step 2: Convert to fraction form
    70,950.53/97,911.62 = 39,119.51/x
  3. Step 3: Cross multiply
    70,950.53x = 97,911.62 × 39,119.51
  4. Step 4: Simplify right side
    70,950.53x = 3,830,254,597.71
  5. Step 5: Solve for x
    x = 3,830,254,597.71/70,950.53
  6. Step 6: Final answer
    x = 53,984.86

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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.