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Finding the Fourth Proportional to 109,651.45, 151,319.46 and 59,350.45

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Solution

The fourth proportional to 109,651.45, 151,319.46 and 59,350.45 is: 81,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,651.45 : 151,319.46 = 59,350.45 : x
  2. Step 2: Convert to fraction form
    109,651.45/151,319.46 = 59,350.45/x
  3. Step 3: Cross multiply
    109,651.45x = 151,319.46 × 59,350.45
  4. Step 4: Simplify right side
    109,651.45x = 8,980,878,044.76
  5. Step 5: Solve for x
    x = 8,980,878,044.76/109,651.45
  6. Step 6: Final answer
    x = 81,903.87

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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.