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Finding the Fourth Proportional to 374,138.60, 516,302.88 and 204,373.40

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Solution

The fourth proportional to 374,138.60, 516,302.88 and 204,373.40 is: 282,030.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,138.60 : 516,302.88 = 204,373.40 : x
  2. Step 2: Convert to fraction form
    374,138.60/516,302.88 = 204,373.40/x
  3. Step 3: Cross multiply
    374,138.60x = 516,302.88 × 204,373.40
  4. Step 4: Simplify right side
    374,138.60x = 105,518,575,015.39
  5. Step 5: Solve for x
    x = 105,518,575,015.39/374,138.60
  6. Step 6: Final answer
    x = 282,030.71

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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.