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Finding the Fourth Proportional to 105,797.88, 145,990.44 and 63,355.32

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Solution

The fourth proportional to 105,797.88, 145,990.44 and 63,355.32 is: 87,423.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,797.88 : 145,990.44 = 63,355.32 : x
  2. Step 2: Convert to fraction form
    105,797.88/145,990.44 = 63,355.32/x
  3. Step 3: Cross multiply
    105,797.88x = 145,990.44 × 63,355.32
  4. Step 4: Simplify right side
    105,797.88x = 9,249,271,043.14
  5. Step 5: Solve for x
    x = 9,249,271,043.14/105,797.88
  6. Step 6: Final answer
    x = 87,423.97

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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.