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Finding the Fourth Proportional to 168,679.50, 232,627.05 and 139,953.68

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Solution

The fourth proportional to 168,679.50, 232,627.05 and 139,953.68 is: 193,011.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,679.50 : 232,627.05 = 139,953.68 : x
  2. Step 2: Convert to fraction form
    168,679.50/232,627.05 = 139,953.68/x
  3. Step 3: Cross multiply
    168,679.50x = 232,627.05 × 139,953.68
  4. Step 4: Simplify right side
    168,679.50x = 32,557,011,715.04
  5. Step 5: Solve for x
    x = 32,557,011,715.04/168,679.50
  6. Step 6: Final answer
    x = 193,011.08

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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.