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Finding the Fourth Proportional to 243,726.57, 365,485.30 and 83,818.60

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Solution

The fourth proportional to 243,726.57, 365,485.30 and 83,818.60 is: 125,691.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,726.57 : 365,485.30 = 83,818.60 : x
  2. Step 2: Convert to fraction form
    243,726.57/365,485.30 = 83,818.60/x
  3. Step 3: Cross multiply
    243,726.57x = 365,485.30 × 83,818.60
  4. Step 4: Simplify right side
    243,726.57x = 30,634,465,043.32
  5. Step 5: Solve for x
    x = 30,634,465,043.32/243,726.57
  6. Step 6: Final answer
    x = 125,691.94

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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.