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Finding the Fourth Proportional to 70,851.63, 97,776.18 and 39,022.89

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Solution

The fourth proportional to 70,851.63, 97,776.18 and 39,022.89 is: 53,852.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,851.63 : 97,776.18 = 39,022.89 : x
  2. Step 2: Convert to fraction form
    70,851.63/97,776.18 = 39,022.89/x
  3. Step 3: Cross multiply
    70,851.63x = 97,776.18 × 39,022.89
  4. Step 4: Simplify right side
    70,851.63x = 3,815,509,116.76
  5. Step 5: Solve for x
    x = 3,815,509,116.76/70,851.63
  6. Step 6: Final answer
    x = 53,852.10

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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.