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Finding the Fourth Proportional to 316,189.60, 436,352.88 and 180,244.06

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Solution

The fourth proportional to 316,189.60, 436,352.88 and 180,244.06 is: 248,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,189.60 : 436,352.88 = 180,244.06 : x
  2. Step 2: Convert to fraction form
    316,189.60/436,352.88 = 180,244.06/x
  3. Step 3: Cross multiply
    316,189.60x = 436,352.88 × 180,244.06
  4. Step 4: Simplify right side
    316,189.60x = 78,650,014,683.89
  5. Step 5: Solve for x
    x = 78,650,014,683.89/316,189.60
  6. Step 6: Final answer
    x = 248,743.21

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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.