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Finding the Fourth Proportional to 93,675.81, 129,272.72 and 51,234.45

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Solution

The fourth proportional to 93,675.81, 129,272.72 and 51,234.45 is: 70,703.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,675.81 : 129,272.72 = 51,234.45 : x
  2. Step 2: Convert to fraction form
    93,675.81/129,272.72 = 51,234.45/x
  3. Step 3: Cross multiply
    93,675.81x = 129,272.72 × 51,234.45
  4. Step 4: Simplify right side
    93,675.81x = 6,623,216,709.20
  5. Step 5: Solve for x
    x = 6,623,216,709.20/93,675.81
  6. Step 6: Final answer
    x = 70,703.60

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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.