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Finding the Fourth Proportional to 282,494.60, 423,396.30 and 124,555.40

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Solution

The fourth proportional to 282,494.60, 423,396.30 and 124,555.40 is: 186,680.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,494.60 : 423,396.30 = 124,555.40 : x
  2. Step 2: Convert to fraction form
    282,494.60/423,396.30 = 124,555.40/x
  3. Step 3: Cross multiply
    282,494.60x = 423,396.30 × 124,555.40
  4. Step 4: Simplify right side
    282,494.60x = 52,736,295,505.02
  5. Step 5: Solve for x
    x = 52,736,295,505.02/282,494.60
  6. Step 6: Final answer
    x = 186,680.72

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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.