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Finding the Fourth Proportional to 93,106.48, 128,485.69 and 50,664.91

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Solution

The fourth proportional to 93,106.48, 128,485.69 and 50,664.91 is: 69,916.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,106.48 : 128,485.69 = 50,664.91 : x
  2. Step 2: Convert to fraction form
    93,106.48/128,485.69 = 50,664.91/x
  3. Step 3: Cross multiply
    93,106.48x = 128,485.69 × 50,664.91
  4. Step 4: Simplify right side
    93,106.48x = 6,509,715,920.14
  5. Step 5: Solve for x
    x = 6,509,715,920.14/93,106.48
  6. Step 6: Final answer
    x = 69,916.89

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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.