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Finding the Fourth Proportional to 112,103.90, 157,062.10 and 112,103.90

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Solution

The fourth proportional to 112,103.90, 157,062.10 and 112,103.90 is: 157,062.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,103.90 : 157,062.10 = 112,103.90 : x
  2. Step 2: Convert to fraction form
    112,103.90/157,062.10 = 112,103.90/x
  3. Step 3: Cross multiply
    112,103.90x = 157,062.10 × 112,103.90
  4. Step 4: Simplify right side
    112,103.90x = 17,607,273,952.19
  5. Step 5: Solve for x
    x = 17,607,273,952.19/112,103.90
  6. Step 6: Final answer
    x = 157,062.10

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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.