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Finding the Fourth Proportional to 374,863.61, 517,101.53 and 229,739.70

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Solution

The fourth proportional to 374,863.61, 517,101.53 and 229,739.70 is: 316,911.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,863.61 : 517,101.53 = 229,739.70 : x
  2. Step 2: Convert to fraction form
    374,863.61/517,101.53 = 229,739.70/x
  3. Step 3: Cross multiply
    374,863.61x = 517,101.53 × 229,739.70
  4. Step 4: Simplify right side
    374,863.61x = 118,798,750,371.74
  5. Step 5: Solve for x
    x = 118,798,750,371.74/374,863.61
  6. Step 6: Final answer
    x = 316,911.93

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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.