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Finding the Fourth Proportional to 113,862.90, 157,057.49 and 69,150.90

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Solution

The fourth proportional to 113,862.90, 157,057.49 and 69,150.90 is: 95,383.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,862.90 : 157,057.49 = 69,150.90 : x
  2. Step 2: Convert to fraction form
    113,862.90/157,057.49 = 69,150.90/x
  3. Step 3: Cross multiply
    113,862.90x = 157,057.49 × 69,150.90
  4. Step 4: Simplify right side
    113,862.90x = 10,860,666,785.24
  5. Step 5: Solve for x
    x = 10,860,666,785.24/113,862.90
  6. Step 6: Final answer
    x = 95,383.72

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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.