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Finding the Fourth Proportional to 316,488.83, 436,805.44 and 180,567.11

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Solution

The fourth proportional to 316,488.83, 436,805.44 and 180,567.11 is: 249,211.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,488.83 : 436,805.44 = 180,567.11 : x
  2. Step 2: Convert to fraction form
    316,488.83/436,805.44 = 180,567.11/x
  3. Step 3: Cross multiply
    316,488.83x = 436,805.44 × 180,567.11
  4. Step 4: Simplify right side
    316,488.83x = 78,872,696,573.67
  5. Step 5: Solve for x
    x = 78,872,696,573.67/316,488.83
  6. Step 6: Final answer
    x = 249,211.63

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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.