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Finding the Fourth Proportional to 313,281.92, 432,332.24 and 170,043.20

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Solution

The fourth proportional to 313,281.92, 432,332.24 and 170,043.20 is: 234,661.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,281.92 : 432,332.24 = 170,043.20 : x
  2. Step 2: Convert to fraction form
    313,281.92/432,332.24 = 170,043.20/x
  3. Step 3: Cross multiply
    313,281.92x = 432,332.24 × 170,043.20
  4. Step 4: Simplify right side
    313,281.92x = 73,515,157,552.77
  5. Step 5: Solve for x
    x = 73,515,157,552.77/313,281.92
  6. Step 6: Final answer
    x = 234,661.35

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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.