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Finding the Fourth Proportional to 121,667.40, 182,428.20 and 62,618.40

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Solution

The fourth proportional to 121,667.40, 182,428.20 and 62,618.40 is: 93,890.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,667.40 : 182,428.20 = 62,618.40 : x
  2. Step 2: Convert to fraction form
    121,667.40/182,428.20 = 62,618.40/x
  3. Step 3: Cross multiply
    121,667.40x = 182,428.20 × 62,618.40
  4. Step 4: Simplify right side
    121,667.40x = 11,423,361,998.88
  5. Step 5: Solve for x
    x = 11,423,361,998.88/121,667.40
  6. Step 6: Final answer
    x = 93,890.08

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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.