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Finding the Fourth Proportional to 93,739.65, 129,360.47 and 51,297.81

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Solution

The fourth proportional to 93,739.65, 129,360.47 and 51,297.81 is: 70,790.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,739.65 : 129,360.47 = 51,297.81 : x
  2. Step 2: Convert to fraction form
    93,739.65/129,360.47 = 51,297.81/x
  3. Step 3: Cross multiply
    93,739.65x = 129,360.47 × 51,297.81
  4. Step 4: Simplify right side
    93,739.65x = 6,635,908,293.01
  5. Step 5: Solve for x
    x = 6,635,908,293.01/93,739.65
  6. Step 6: Final answer
    x = 70,790.84

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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.