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Finding the Fourth Proportional to 70,666.56, 97,605.36 and 51,516

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Solution

The fourth proportional to 70,666.56, 97,605.36 and 51,516 is: 71,154.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,666.56 : 97,605.36 = 51,516 : x
  2. Step 2: Convert to fraction form
    70,666.56/97,605.36 = 51,516/x
  3. Step 3: Cross multiply
    70,666.56x = 97,605.36 × 51,516
  4. Step 4: Simplify right side
    70,666.56x = 5,028,237,725.76
  5. Step 5: Solve for x
    x = 5,028,237,725.76/70,666.56
  6. Step 6: Final answer
    x = 71,154.41

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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.