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Finding the Fourth Proportional to 128,097.90, 192,047.36 and 83,024.10

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Solution

The fourth proportional to 128,097.90, 192,047.36 and 83,024.10 is: 124,471.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,097.90 : 192,047.36 = 83,024.10 : x
  2. Step 2: Convert to fraction form
    128,097.90/192,047.36 = 83,024.10/x
  3. Step 3: Cross multiply
    128,097.90x = 192,047.36 × 83,024.10
  4. Step 4: Simplify right side
    128,097.90x = 15,944,558,806.26
  5. Step 5: Solve for x
    x = 15,944,558,806.26/128,097.90
  6. Step 6: Final answer
    x = 124,471.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.