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Finding the Fourth Proportional to 552,512.61, 828,686.88 and 153,111.74

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Solution

The fourth proportional to 552,512.61, 828,686.88 and 153,111.74 is: 229,644.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,512.61 : 828,686.88 = 153,111.74 : x
  2. Step 2: Convert to fraction form
    552,512.61/828,686.88 = 153,111.74/x
  3. Step 3: Cross multiply
    552,512.61x = 828,686.88 × 153,111.74
  4. Step 4: Simplify right side
    552,512.61x = 126,881,685,968.54
  5. Step 5: Solve for x
    x = 126,881,685,968.54/552,512.61
  6. Step 6: Final answer
    x = 229,644.87

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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.