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Finding the Fourth Proportional to 76,370.40, 114,639.42 and 60,676.32

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Solution

The fourth proportional to 76,370.40, 114,639.42 and 60,676.32 is: 91,081.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,370.40 : 114,639.42 = 60,676.32 : x
  2. Step 2: Convert to fraction form
    76,370.40/114,639.42 = 60,676.32/x
  3. Step 3: Cross multiply
    76,370.40x = 114,639.42 × 60,676.32
  4. Step 4: Simplify right side
    76,370.40x = 6,955,898,132.53
  5. Step 5: Solve for x
    x = 6,955,898,132.53/76,370.40
  6. Step 6: Final answer
    x = 91,081.08

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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.