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Finding the Fourth Proportional to 113,170.41, 168,925.79 and 99,886.41

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Solution

The fourth proportional to 113,170.41, 168,925.79 and 99,886.41 is: 149,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,170.41 : 168,925.79 = 99,886.41 : x
  2. Step 2: Convert to fraction form
    113,170.41/168,925.79 = 99,886.41/x
  3. Step 3: Cross multiply
    113,170.41x = 168,925.79 × 99,886.41
  4. Step 4: Simplify right side
    113,170.41x = 16,873,390,969.23
  5. Step 5: Solve for x
    x = 16,873,390,969.23/113,170.41
  6. Step 6: Final answer
    x = 149,097.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.