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Finding the Fourth Proportional to 165,078.60, 247,617.90 and 153,924.90

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Solution

The fourth proportional to 165,078.60, 247,617.90 and 153,924.90 is: 230,887.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,078.60 : 247,617.90 = 153,924.90 : x
  2. Step 2: Convert to fraction form
    165,078.60/247,617.90 = 153,924.90/x
  3. Step 3: Cross multiply
    165,078.60x = 247,617.90 × 153,924.90
  4. Step 4: Simplify right side
    165,078.60x = 38,114,560,495.71
  5. Step 5: Solve for x
    x = 38,114,560,495.71/165,078.60
  6. Step 6: Final answer
    x = 230,887.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.