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Finding the Fourth Proportional to 93,351.65, 128,820.15 and 53,059.82

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Solution

The fourth proportional to 93,351.65, 128,820.15 and 53,059.82 is: 73,219.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,351.65 : 128,820.15 = 53,059.82 : x
  2. Step 2: Convert to fraction form
    93,351.65/128,820.15 = 53,059.82/x
  3. Step 3: Cross multiply
    93,351.65x = 128,820.15 × 53,059.82
  4. Step 4: Simplify right side
    93,351.65x = 6,835,173,327.27
  5. Step 5: Solve for x
    x = 6,835,173,327.27/93,351.65
  6. Step 6: Final answer
    x = 73,219.63

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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.