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Finding the Fourth Proportional to 313,120.11, 432,106.52 and 169,880.11

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Solution

The fourth proportional to 313,120.11, 432,106.52 and 169,880.11 is: 234,434.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,120.11 : 432,106.52 = 169,880.11 : x
  2. Step 2: Convert to fraction form
    313,120.11/432,106.52 = 169,880.11/x
  3. Step 3: Cross multiply
    313,120.11x = 432,106.52 × 169,880.11
  4. Step 4: Simplify right side
    313,120.11x = 73,406,303,574.02
  5. Step 5: Solve for x
    x = 73,406,303,574.02/313,120.11
  6. Step 6: Final answer
    x = 234,434.97

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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.