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Finding the Fourth Proportional to 93,647.40, 140,471.10 and 93,064.20

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Solution

The fourth proportional to 93,647.40, 140,471.10 and 93,064.20 is: 139,596.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,647.40 : 140,471.10 = 93,064.20 : x
  2. Step 2: Convert to fraction form
    93,647.40/140,471.10 = 93,064.20/x
  3. Step 3: Cross multiply
    93,647.40x = 140,471.10 × 93,064.20
  4. Step 4: Simplify right side
    93,647.40x = 13,072,830,544.62
  5. Step 5: Solve for x
    x = 13,072,830,544.62/93,647.40
  6. Step 6: Final answer
    x = 139,596.30

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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.