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Finding the Fourth Proportional to 316,911.22, 437,349.48 and 180,967.30

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Solution

The fourth proportional to 316,911.22, 437,349.48 and 180,967.30 is: 249,741.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,911.22 : 437,349.48 = 180,967.30 : x
  2. Step 2: Convert to fraction form
    316,911.22/437,349.48 = 180,967.30/x
  3. Step 3: Cross multiply
    316,911.22x = 437,349.48 × 180,967.30
  4. Step 4: Simplify right side
    316,911.22x = 79,145,954,552.00
  5. Step 5: Solve for x
    x = 79,145,954,552.00/316,911.22
  6. Step 6: Final answer
    x = 249,741.72

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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.