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Finding the Fourth Proportional to 361,888.60, 542,570.46 and 243,265.72

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Solution

The fourth proportional to 361,888.60, 542,570.46 and 243,265.72 is: 364,722.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,888.60 : 542,570.46 = 243,265.72 : x
  2. Step 2: Convert to fraction form
    361,888.60/542,570.46 = 243,265.72/x
  3. Step 3: Cross multiply
    361,888.60x = 542,570.46 × 243,265.72
  4. Step 4: Simplify right side
    361,888.60x = 131,988,793,602.63
  5. Step 5: Solve for x
    x = 131,988,793,602.63/361,888.60
  6. Step 6: Final answer
    x = 364,722.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.