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Finding the Fourth Proportional to 229,854.34, 317,242.68 and 143,853.30

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Solution

The fourth proportional to 229,854.34, 317,242.68 and 143,853.30 is: 198,544.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,854.34 : 317,242.68 = 143,853.30 : x
  2. Step 2: Convert to fraction form
    229,854.34/317,242.68 = 143,853.30/x
  3. Step 3: Cross multiply
    229,854.34x = 317,242.68 × 143,853.30
  4. Step 4: Simplify right side
    229,854.34x = 45,636,405,879.39
  5. Step 5: Solve for x
    x = 45,636,405,879.39/229,854.34
  6. Step 6: Final answer
    x = 198,544.89

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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.