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Finding the Fourth Proportional to 112,101.90, 157,059.30 and 112,101.90

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Solution

The fourth proportional to 112,101.90, 157,059.30 and 112,101.90 is: 157,059.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,101.90 : 157,059.30 = 112,101.90 : x
  2. Step 2: Convert to fraction form
    112,101.90/157,059.30 = 112,101.90/x
  3. Step 3: Cross multiply
    112,101.90x = 157,059.30 × 112,101.90
  4. Step 4: Simplify right side
    112,101.90x = 17,606,645,942.67
  5. Step 5: Solve for x
    x = 17,606,645,942.67/112,101.90
  6. Step 6: Final answer
    x = 157,059.30

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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.