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Finding the Fourth Proportional to 182,421.40, 273,048.90 and 129,933.40

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Solution

The fourth proportional to 182,421.40, 273,048.90 and 129,933.40 is: 194,484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,421.40 : 273,048.90 = 129,933.40 : x
  2. Step 2: Convert to fraction form
    182,421.40/273,048.90 = 129,933.40/x
  3. Step 3: Cross multiply
    182,421.40x = 273,048.90 × 129,933.40
  4. Step 4: Simplify right side
    182,421.40x = 35,478,171,943.26
  5. Step 5: Solve for x
    x = 35,478,171,943.26/182,421.40
  6. Step 6: Final answer
    x = 194,484.70

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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.