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Finding the Fourth Proportional to 112,035.15, 156,965.85 and 112,035.15

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Solution

The fourth proportional to 112,035.15, 156,965.85 and 112,035.15 is: 156,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,035.15 : 156,965.85 = 112,035.15 : x
  2. Step 2: Convert to fraction form
    112,035.15/156,965.85 = 112,035.15/x
  3. Step 3: Cross multiply
    112,035.15x = 156,965.85 × 112,035.15
  4. Step 4: Simplify right side
    112,035.15x = 17,585,692,549.63
  5. Step 5: Solve for x
    x = 17,585,692,549.63/112,035.15
  6. Step 6: Final answer
    x = 156,965.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.