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Finding the Fourth Proportional to 318,154.84, 439,053.96 and 174,917.32

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Solution

The fourth proportional to 318,154.84, 439,053.96 and 174,917.32 is: 241,386.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,154.84 : 439,053.96 = 174,917.32 : x
  2. Step 2: Convert to fraction form
    318,154.84/439,053.96 = 174,917.32/x
  3. Step 3: Cross multiply
    318,154.84x = 439,053.96 × 174,917.32
  4. Step 4: Simplify right side
    318,154.84x = 76,798,142,018.59
  5. Step 5: Solve for x
    x = 76,798,142,018.59/318,154.84
  6. Step 6: Final answer
    x = 241,386.06

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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.