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Finding the Fourth Proportional to 100,953.20, 151,429.80 and 34,468.40

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Solution

The fourth proportional to 100,953.20, 151,429.80 and 34,468.40 is: 51,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,953.20 : 151,429.80 = 34,468.40 : x
  2. Step 2: Convert to fraction form
    100,953.20/151,429.80 = 34,468.40/x
  3. Step 3: Cross multiply
    100,953.20x = 151,429.80 × 34,468.40
  4. Step 4: Simplify right side
    100,953.20x = 5,219,542,918.32
  5. Step 5: Solve for x
    x = 5,219,542,918.32/100,953.20
  6. Step 6: Final answer
    x = 51,702.60

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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.