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Finding the Fourth Proportional to 114,120.38, 157,485.20 and 63,819.38

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Solution

The fourth proportional to 114,120.38, 157,485.20 and 63,819.38 is: 88,070.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,120.38 : 157,485.20 = 63,819.38 : x
  2. Step 2: Convert to fraction form
    114,120.38/157,485.20 = 63,819.38/x
  3. Step 3: Cross multiply
    114,120.38x = 157,485.20 × 63,819.38
  4. Step 4: Simplify right side
    114,120.38x = 10,050,607,823.18
  5. Step 5: Solve for x
    x = 10,050,607,823.18/114,120.38
  6. Step 6: Final answer
    x = 88,070.23

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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.