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Finding the Fourth Proportional to 93,220.91, 128,644.20 and 50,779.44

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Solution

The fourth proportional to 93,220.91, 128,644.20 and 50,779.44 is: 70,075.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,220.91 : 128,644.20 = 50,779.44 : x
  2. Step 2: Convert to fraction form
    93,220.91/128,644.20 = 50,779.44/x
  3. Step 3: Cross multiply
    93,220.91x = 128,644.20 × 50,779.44
  4. Step 4: Simplify right side
    93,220.91x = 6,532,480,181.35
  5. Step 5: Solve for x
    x = 6,532,480,181.35/93,220.91
  6. Step 6: Final answer
    x = 70,075.27

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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.