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Finding the Fourth Proportional to 93,269.70, 128,714.91 and 50,830.96

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Solution

The fourth proportional to 93,269.70, 128,714.91 and 50,830.96 is: 70,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,269.70 : 128,714.91 = 50,830.96 : x
  2. Step 2: Convert to fraction form
    93,269.70/128,714.91 = 50,830.96/x
  3. Step 3: Cross multiply
    93,269.70x = 128,714.91 × 50,830.96
  4. Step 4: Simplify right side
    93,269.70x = 6,542,702,441.61
  5. Step 5: Solve for x
    x = 6,542,702,441.61/93,269.70
  6. Step 6: Final answer
    x = 70,148.21

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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.