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Finding the Fourth Proportional to 93,803.68, 129,447.79 and 51,362.21

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Solution

The fourth proportional to 93,803.68, 129,447.79 and 51,362.21 is: 70,879.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,803.68 : 129,447.79 = 51,362.21 : x
  2. Step 2: Convert to fraction form
    93,803.68/129,447.79 = 51,362.21/x
  3. Step 3: Cross multiply
    93,803.68x = 129,447.79 × 51,362.21
  4. Step 4: Simplify right side
    93,803.68x = 6,648,724,041.09
  5. Step 5: Solve for x
    x = 6,648,724,041.09/93,803.68
  6. Step 6: Final answer
    x = 70,879.14

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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.