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Finding the Fourth Proportional to 76,612.60, 114,918.90 and 37,246.60

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Solution

The fourth proportional to 76,612.60, 114,918.90 and 37,246.60 is: 55,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,612.60 : 114,918.90 = 37,246.60 : x
  2. Step 2: Convert to fraction form
    76,612.60/114,918.90 = 37,246.60/x
  3. Step 3: Cross multiply
    76,612.60x = 114,918.90 × 37,246.60
  4. Step 4: Simplify right side
    76,612.60x = 4,280,338,300.74
  5. Step 5: Solve for x
    x = 4,280,338,300.74/76,612.60
  6. Step 6: Final answer
    x = 55,869.90

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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.