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Finding the Fourth Proportional to 169,620.84, 234,066.27 and 93,139.64

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Solution

The fourth proportional to 169,620.84, 234,066.27 and 93,139.64 is: 128,526.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,620.84 : 234,066.27 = 93,139.64 : x
  2. Step 2: Convert to fraction form
    169,620.84/234,066.27 = 93,139.64/x
  3. Step 3: Cross multiply
    169,620.84x = 234,066.27 × 93,139.64
  4. Step 4: Simplify right side
    169,620.84x = 21,800,846,953.61
  5. Step 5: Solve for x
    x = 21,800,846,953.61/169,620.84
  6. Step 6: Final answer
    x = 128,526.94

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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.