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Finding the Fourth Proportional to 76,849.84, 115,288.68 and 37,406.92

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Solution

The fourth proportional to 76,849.84, 115,288.68 and 37,406.92 is: 56,117.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,849.84 : 115,288.68 = 37,406.92 : x
  2. Step 2: Convert to fraction form
    76,849.84/115,288.68 = 37,406.92/x
  3. Step 3: Cross multiply
    76,849.84x = 115,288.68 × 37,406.92
  4. Step 4: Simplify right side
    76,849.84x = 4,312,594,429.67
  5. Step 5: Solve for x
    x = 4,312,594,429.67/76,849.84
  6. Step 6: Final answer
    x = 56,117.16

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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.