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Finding the Fourth Proportional to 93,259, 128,697.48 and 50,817.52

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Solution

The fourth proportional to 93,259, 128,697.48 and 50,817.52 is: 70,128.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,259 : 128,697.48 = 50,817.52 : x
  2. Step 2: Convert to fraction form
    93,259/128,697.48 = 50,817.52/x
  3. Step 3: Cross multiply
    93,259x = 128,697.48 × 50,817.52
  4. Step 4: Simplify right side
    93,259x = 6,540,086,763.85
  5. Step 5: Solve for x
    x = 6,540,086,763.85/93,259
  6. Step 6: Final answer
    x = 70,128.21

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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.