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Finding the Fourth Proportional to 315,534.06, 435,493.13 and 186,467.04

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Solution

The fourth proportional to 315,534.06, 435,493.13 and 186,467.04 is: 257,357.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,534.06 : 435,493.13 = 186,467.04 : x
  2. Step 2: Convert to fraction form
    315,534.06/435,493.13 = 186,467.04/x
  3. Step 3: Cross multiply
    315,534.06x = 435,493.13 × 186,467.04
  4. Step 4: Simplify right side
    315,534.06x = 81,205,113,959.10
  5. Step 5: Solve for x
    x = 81,205,113,959.10/315,534.06
  6. Step 6: Final answer
    x = 257,357.68

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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.