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Finding the Fourth Proportional to 93,665.70, 140,498.55 and 92,790.90

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Solution

The fourth proportional to 93,665.70, 140,498.55 and 92,790.90 is: 139,186.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,665.70 : 140,498.55 = 92,790.90 : x
  2. Step 2: Convert to fraction form
    93,665.70/140,498.55 = 92,790.90/x
  3. Step 3: Cross multiply
    93,665.70x = 140,498.55 × 92,790.90
  4. Step 4: Simplify right side
    93,665.70x = 13,036,986,903.20
  5. Step 5: Solve for x
    x = 13,036,986,903.20/93,665.70
  6. Step 6: Final answer
    x = 139,186.35

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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.