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Finding the Fourth Proportional to 93,144.90, 139,638.99 and 40,514.76

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Solution

The fourth proportional to 93,144.90, 139,638.99 and 40,514.76 is: 60,738.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,144.90 : 139,638.99 = 40,514.76 : x
  2. Step 2: Convert to fraction form
    93,144.90/139,638.99 = 40,514.76/x
  3. Step 3: Cross multiply
    93,144.90x = 139,638.99 × 40,514.76
  4. Step 4: Simplify right side
    93,144.90x = 5,657,440,166.49
  5. Step 5: Solve for x
    x = 5,657,440,166.49/93,144.90
  6. Step 6: Final answer
    x = 60,738.06

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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.