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Finding the Fourth Proportional to 146,281.68, 201,867.55 and 79,213.68

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Solution

The fourth proportional to 146,281.68, 201,867.55 and 79,213.68 is: 109,314.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,281.68 : 201,867.55 = 79,213.68 : x
  2. Step 2: Convert to fraction form
    146,281.68/201,867.55 = 79,213.68/x
  3. Step 3: Cross multiply
    146,281.68x = 201,867.55 × 79,213.68
  4. Step 4: Simplify right side
    146,281.68x = 15,990,671,508.08
  5. Step 5: Solve for x
    x = 15,990,671,508.08/146,281.68
  6. Step 6: Final answer
    x = 109,314.25

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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.