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Finding the Fourth Proportional to 93,296.85, 128,749.65 and 50,855.38

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Solution

The fourth proportional to 93,296.85, 128,749.65 and 50,855.38 is: 70,180.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,296.85 : 128,749.65 = 50,855.38 : x
  2. Step 2: Convert to fraction form
    93,296.85/128,749.65 = 50,855.38/x
  3. Step 3: Cross multiply
    93,296.85x = 128,749.65 × 50,855.38
  4. Step 4: Simplify right side
    93,296.85x = 6,547,612,149.10
  5. Step 5: Solve for x
    x = 6,547,612,149.10/93,296.85
  6. Step 6: Final answer
    x = 70,180.42

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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.