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Finding the Fourth Proportional to 93,256.65, 128,694.15 and 50,815.15

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Solution

The fourth proportional to 93,256.65, 128,694.15 and 50,815.15 is: 70,124.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,256.65 : 128,694.15 = 50,815.15 : x
  2. Step 2: Convert to fraction form
    93,256.65/128,694.15 = 50,815.15/x
  3. Step 3: Cross multiply
    93,256.65x = 128,694.15 × 50,815.15
  4. Step 4: Simplify right side
    93,256.65x = 6,539,612,214.64
  5. Step 5: Solve for x
    x = 6,539,612,214.64/93,256.65
  6. Step 6: Final answer
    x = 70,124.89

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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.