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Finding the Fourth Proportional to 122,300.13, 168,696.51 and 88,358.49

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Solution

The fourth proportional to 122,300.13, 168,696.51 and 88,358.49 is: 121,878.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,300.13 : 168,696.51 = 88,358.49 : x
  2. Step 2: Convert to fraction form
    122,300.13/168,696.51 = 88,358.49/x
  3. Step 3: Cross multiply
    122,300.13x = 168,696.51 × 88,358.49
  4. Step 4: Simplify right side
    122,300.13x = 14,905,768,891.87
  5. Step 5: Solve for x
    x = 14,905,768,891.87/122,300.13
  6. Step 6: Final answer
    x = 121,878.60

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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.