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Finding the Fourth Proportional to 93,666.40, 140,499.60 and 92,111.20

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Solution

The fourth proportional to 93,666.40, 140,499.60 and 92,111.20 is: 138,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,666.40 : 140,499.60 = 92,111.20 : x
  2. Step 2: Convert to fraction form
    93,666.40/140,499.60 = 92,111.20/x
  3. Step 3: Cross multiply
    93,666.40x = 140,499.60 × 92,111.20
  4. Step 4: Simplify right side
    93,666.40x = 12,941,586,755.52
  5. Step 5: Solve for x
    x = 12,941,586,755.52/93,666.40
  6. Step 6: Final answer
    x = 138,166.80

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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.