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Finding the Fourth Proportional to 313,155.10, 432,152.59 and 169,914.79

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Solution

The fourth proportional to 313,155.10, 432,152.59 and 169,914.79 is: 234,481.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,155.10 : 432,152.59 = 169,914.79 : x
  2. Step 2: Convert to fraction form
    313,155.10/432,152.59 = 169,914.79/x
  3. Step 3: Cross multiply
    313,155.10x = 432,152.59 × 169,914.79
  4. Step 4: Simplify right side
    313,155.10x = 73,429,113,567.47
  5. Step 5: Solve for x
    x = 73,429,113,567.47/313,155.10
  6. Step 6: Final answer
    x = 234,481.62

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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.