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Finding the Fourth Proportional to 93,338.61, 139,412.83 and 84,440.22

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Solution

The fourth proportional to 93,338.61, 139,412.83 and 84,440.22 is: 126,121.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,338.61 : 139,412.83 = 84,440.22 : x
  2. Step 2: Convert to fraction form
    93,338.61/139,412.83 = 84,440.22/x
  3. Step 3: Cross multiply
    93,338.61x = 139,412.83 × 84,440.22
  4. Step 4: Simplify right side
    93,338.61x = 11,772,049,613.82
  5. Step 5: Solve for x
    x = 11,772,049,613.82/93,338.61
  6. Step 6: Final answer
    x = 126,121.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.