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Finding the Fourth Proportional to 316,662.08, 436,985.10 and 180,693.54

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Solution

The fourth proportional to 316,662.08, 436,985.10 and 180,693.54 is: 249,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,662.08 : 436,985.10 = 180,693.54 : x
  2. Step 2: Convert to fraction form
    316,662.08/436,985.10 = 180,693.54/x
  3. Step 3: Cross multiply
    316,662.08x = 436,985.10 × 180,693.54
  4. Step 4: Simplify right side
    316,662.08x = 78,960,384,646.25
  5. Step 5: Solve for x
    x = 78,960,384,646.25/316,662.08
  6. Step 6: Final answer
    x = 249,352.20

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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.