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Finding the Fourth Proportional to 112,656.95, 155,455.95 and 67,325.91

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Solution

The fourth proportional to 112,656.95, 155,455.95 and 67,325.91 is: 92,903.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,656.95 : 155,455.95 = 67,325.91 : x
  2. Step 2: Convert to fraction form
    112,656.95/155,455.95 = 67,325.91/x
  3. Step 3: Cross multiply
    112,656.95x = 155,455.95 × 67,325.91
  4. Step 4: Simplify right side
    112,656.95x = 10,466,212,521.38
  5. Step 5: Solve for x
    x = 10,466,212,521.38/112,656.95
  6. Step 6: Final answer
    x = 92,903.39

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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.