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Finding the Fourth Proportional to 93,683.80, 140,525.70 and 70,064.20

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Solution

The fourth proportional to 93,683.80, 140,525.70 and 70,064.20 is: 105,096.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,683.80 : 140,525.70 = 70,064.20 : x
  2. Step 2: Convert to fraction form
    93,683.80/140,525.70 = 70,064.20/x
  3. Step 3: Cross multiply
    93,683.80x = 140,525.70 × 70,064.20
  4. Step 4: Simplify right side
    93,683.80x = 9,845,820,749.94
  5. Step 5: Solve for x
    x = 9,845,820,749.94/93,683.80
  6. Step 6: Final answer
    x = 105,096.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.