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Finding the Fourth Proportional to 183,798.40, 275,632.80 and 84,006.40

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Solution

The fourth proportional to 183,798.40, 275,632.80 and 84,006.40 is: 125,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,798.40 : 275,632.80 = 84,006.40 : x
  2. Step 2: Convert to fraction form
    183,798.40/275,632.80 = 84,006.40/x
  3. Step 3: Cross multiply
    183,798.40x = 275,632.80 × 84,006.40
  4. Step 4: Simplify right side
    183,798.40x = 23,154,919,249.92
  5. Step 5: Solve for x
    x = 23,154,919,249.92/183,798.40
  6. Step 6: Final answer
    x = 125,979.98

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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.