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Finding the Fourth Proportional to 316,099.80, 436,259.52 and 180,182.88

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Solution

The fourth proportional to 316,099.80, 436,259.52 and 180,182.88 is: 248,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,099.80 : 436,259.52 = 180,182.88 : x
  2. Step 2: Convert to fraction form
    316,099.80/436,259.52 = 180,182.88/x
  3. Step 3: Cross multiply
    316,099.80x = 436,259.52 × 180,182.88
  4. Step 4: Simplify right side
    316,099.80x = 78,606,496,741.02
  5. Step 5: Solve for x
    x = 78,606,496,741.02/316,099.80
  6. Step 6: Final answer
    x = 248,676.20

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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.