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Finding the Fourth Proportional to 128,183.99, 176,897.48 and 70,827.01

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Solution

The fourth proportional to 128,183.99, 176,897.48 and 70,827.01 is: 97,743.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,183.99 : 176,897.48 = 70,827.01 : x
  2. Step 2: Convert to fraction form
    128,183.99/176,897.48 = 70,827.01/x
  3. Step 3: Cross multiply
    128,183.99x = 176,897.48 × 70,827.01
  4. Step 4: Simplify right side
    128,183.99x = 12,529,118,788.56
  5. Step 5: Solve for x
    x = 12,529,118,788.56/128,183.99
  6. Step 6: Final answer
    x = 97,743.24

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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.