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Finding the Fourth Proportional to 93,786.49, 129,424.48 and 51,344.65

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Solution

The fourth proportional to 93,786.49, 129,424.48 and 51,344.65 is: 70,855.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,786.49 : 129,424.48 = 51,344.65 : x
  2. Step 2: Convert to fraction form
    93,786.49/129,424.48 = 51,344.65/x
  3. Step 3: Cross multiply
    93,786.49x = 129,424.48 × 51,344.65
  4. Step 4: Simplify right side
    93,786.49x = 6,645,254,627.03
  5. Step 5: Solve for x
    x = 6,645,254,627.03/93,786.49
  6. Step 6: Final answer
    x = 70,855.14

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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.