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Finding the Fourth Proportional to 93,106.76, 128,486.22 and 50,664.56

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Solution

The fourth proportional to 93,106.76, 128,486.22 and 50,664.56 is: 69,916.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,106.76 : 128,486.22 = 50,664.56 : x
  2. Step 2: Convert to fraction form
    93,106.76/128,486.22 = 50,664.56/x
  3. Step 3: Cross multiply
    93,106.76x = 128,486.22 × 50,664.56
  4. Step 4: Simplify right side
    93,106.76x = 6,509,697,802.36
  5. Step 5: Solve for x
    x = 6,509,697,802.36/93,106.76
  6. Step 6: Final answer
    x = 69,916.49

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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.