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Finding the Fourth Proportional to 307,126.60, 460,689.96 and 120,006.88

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Solution

The fourth proportional to 307,126.60, 460,689.96 and 120,006.88 is: 180,010.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,126.60 : 460,689.96 = 120,006.88 : x
  2. Step 2: Convert to fraction form
    307,126.60/460,689.96 = 120,006.88/x
  3. Step 3: Cross multiply
    307,126.60x = 460,689.96 × 120,006.88
  4. Step 4: Simplify right side
    307,126.60x = 55,285,964,746.92
  5. Step 5: Solve for x
    x = 55,285,964,746.92/307,126.60
  6. Step 6: Final answer
    x = 180,010.34

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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.