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Finding the Fourth Proportional to 93,683.70, 140,525.55 and 83,842.20

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Solution

The fourth proportional to 93,683.70, 140,525.55 and 83,842.20 is: 125,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,683.70 : 140,525.55 = 83,842.20 : x
  2. Step 2: Convert to fraction form
    93,683.70/140,525.55 = 83,842.20/x
  3. Step 3: Cross multiply
    93,683.70x = 140,525.55 × 83,842.20
  4. Step 4: Simplify right side
    93,683.70x = 11,781,971,268.21
  5. Step 5: Solve for x
    x = 11,781,971,268.21/93,683.70
  6. Step 6: Final answer
    x = 125,763.30

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1.5x scale

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.