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Finding the Fourth Proportional to 112,113.90, 157,076.10 and 112,113.90

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Solution

The fourth proportional to 112,113.90, 157,076.10 and 112,113.90 is: 157,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,113.90 : 157,076.10 = 112,113.90 : x
  2. Step 2: Convert to fraction form
    112,113.90/157,076.10 = 112,113.90/x
  3. Step 3: Cross multiply
    112,113.90x = 157,076.10 × 112,113.90
  4. Step 4: Simplify right side
    112,113.90x = 17,610,414,167.79
  5. Step 5: Solve for x
    x = 17,610,414,167.79/112,113.90
  6. Step 6: Final answer
    x = 157,076.10

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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.