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Finding the Fourth Proportional to 101,335.60, 152,003.40 and 31,205.80

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Solution

The fourth proportional to 101,335.60, 152,003.40 and 31,205.80 is: 46,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,335.60 : 152,003.40 = 31,205.80 : x
  2. Step 2: Convert to fraction form
    101,335.60/152,003.40 = 31,205.80/x
  3. Step 3: Cross multiply
    101,335.60x = 152,003.40 × 31,205.80
  4. Step 4: Simplify right side
    101,335.60x = 4,743,387,699.72
  5. Step 5: Solve for x
    x = 4,743,387,699.72/101,335.60
  6. Step 6: Final answer
    x = 46,808.70

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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.