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Finding the Fourth Proportional to 112,672.35, 155,477.02 and 67,341.30

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Solution

The fourth proportional to 112,672.35, 155,477.02 and 67,341.30 is: 92,924.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,672.35 : 155,477.02 = 67,341.30 : x
  2. Step 2: Convert to fraction form
    112,672.35/155,477.02 = 67,341.30/x
  3. Step 3: Cross multiply
    112,672.35x = 155,477.02 × 67,341.30
  4. Step 4: Simplify right side
    112,672.35x = 10,470,024,646.93
  5. Step 5: Solve for x
    x = 10,470,024,646.93/112,672.35
  6. Step 6: Final answer
    x = 92,924.53

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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.