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Finding the Fourth Proportional to 93,638.94, 140,457 and 30,461.94

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Solution

The fourth proportional to 93,638.94, 140,457 and 30,461.94 is: 45,692.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,638.94 : 140,457 = 30,461.94 : x
  2. Step 2: Convert to fraction form
    93,638.94/140,457 = 30,461.94/x
  3. Step 3: Cross multiply
    93,638.94x = 140,457 × 30,461.94
  4. Step 4: Simplify right side
    93,638.94x = 4,278,592,706.58
  5. Step 5: Solve for x
    x = 4,278,592,706.58/93,638.94
  6. Step 6: Final answer
    x = 45,692.45

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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.