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Finding the Fourth Proportional to 93,806.90, 129,453.74 and 50,786.85

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Solution

The fourth proportional to 93,806.90, 129,453.74 and 50,786.85 is: 70,085.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,806.90 : 129,453.74 = 50,786.85 : x
  2. Step 2: Convert to fraction form
    93,806.90/129,453.74 = 50,786.85/x
  3. Step 3: Cross multiply
    93,806.90x = 129,453.74 × 50,786.85
  4. Step 4: Simplify right side
    93,806.90x = 6,574,547,802.29
  5. Step 5: Solve for x
    x = 6,574,547,802.29/93,806.90
  6. Step 6: Final answer
    x = 70,085.97

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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.