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Finding the Fourth Proportional to 93,453.59, 128,965.91 and 51,012.11

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Solution

The fourth proportional to 93,453.59, 128,965.91 and 51,012.11 is: 70,396.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,453.59 : 128,965.91 = 51,012.11 : x
  2. Step 2: Convert to fraction form
    93,453.59/128,965.91 = 51,012.11/x
  3. Step 3: Cross multiply
    93,453.59x = 128,965.91 × 51,012.11
  4. Step 4: Simplify right side
    93,453.59x = 6,578,823,254.52
  5. Step 5: Solve for x
    x = 6,578,823,254.52/93,453.59
  6. Step 6: Final answer
    x = 70,396.69

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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.