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Finding the Fourth Proportional to 225,784.80, 338,677.20 and 113,810.40

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Solution

The fourth proportional to 225,784.80, 338,677.20 and 113,810.40 is: 170,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,784.80 : 338,677.20 = 113,810.40 : x
  2. Step 2: Convert to fraction form
    225,784.80/338,677.20 = 113,810.40/x
  3. Step 3: Cross multiply
    225,784.80x = 338,677.20 × 113,810.40
  4. Step 4: Simplify right side
    225,784.80x = 38,544,987,602.88
  5. Step 5: Solve for x
    x = 38,544,987,602.88/225,784.80
  6. Step 6: Final answer
    x = 170,715.60

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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.