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Finding the Fourth Proportional to 124,068.74, 171,205.53 and 73,085.90

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Solution

The fourth proportional to 124,068.74, 171,205.53 and 73,085.90 is: 100,853.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,068.74 : 171,205.53 = 73,085.90 : x
  2. Step 2: Convert to fraction form
    124,068.74/171,205.53 = 73,085.90/x
  3. Step 3: Cross multiply
    124,068.74x = 171,205.53 × 73,085.90
  4. Step 4: Simplify right side
    124,068.74x = 12,512,710,245.03
  5. Step 5: Solve for x
    x = 12,512,710,245.03/124,068.74
  6. Step 6: Final answer
    x = 100,853.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.