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Finding the Fourth Proportional to 188,416.40, 282,624.60 and 187,104.20

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Solution

The fourth proportional to 188,416.40, 282,624.60 and 187,104.20 is: 280,656.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,416.40 : 282,624.60 = 187,104.20 : x
  2. Step 2: Convert to fraction form
    188,416.40/282,624.60 = 187,104.20/x
  3. Step 3: Cross multiply
    188,416.40x = 282,624.60 × 187,104.20
  4. Step 4: Simplify right side
    188,416.40x = 52,880,249,683.32
  5. Step 5: Solve for x
    x = 52,880,249,683.32/188,416.40
  6. Step 6: Final answer
    x = 280,656.30

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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.