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Finding the Fourth Proportional to 114,811.74, 172,220.85 and 31,705.74

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Solution

The fourth proportional to 114,811.74, 172,220.85 and 31,705.74 is: 47,559.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,811.74 : 172,220.85 = 31,705.74 : x
  2. Step 2: Convert to fraction form
    114,811.74/172,220.85 = 31,705.74/x
  3. Step 3: Cross multiply
    114,811.74x = 172,220.85 × 31,705.74
  4. Step 4: Simplify right side
    114,811.74x = 5,460,389,492.68
  5. Step 5: Solve for x
    x = 5,460,389,492.68/114,811.74
  6. Step 6: Final answer
    x = 47,559.50

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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.