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Finding the Fourth Proportional to 93,046.40, 128,401.44 and 50,606.72

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Solution

The fourth proportional to 93,046.40, 128,401.44 and 50,606.72 is: 69,835.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,046.40 : 128,401.44 = 50,606.72 : x
  2. Step 2: Convert to fraction form
    93,046.40/128,401.44 = 50,606.72/x
  3. Step 3: Cross multiply
    93,046.40x = 128,401.44 × 50,606.72
  4. Step 4: Simplify right side
    93,046.40x = 6,497,975,721.68
  5. Step 5: Solve for x
    x = 6,497,975,721.68/93,046.40
  6. Step 6: Final answer
    x = 69,835.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.