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Finding the Fourth Proportional to 552,711.40, 828,953.70 and 153,251.80

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Solution

The fourth proportional to 552,711.40, 828,953.70 and 153,251.80 is: 229,846.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,711.40 : 828,953.70 = 153,251.80 : x
  2. Step 2: Convert to fraction form
    552,711.40/828,953.70 = 153,251.80/x
  3. Step 3: Cross multiply
    552,711.40x = 828,953.70 × 153,251.80
  4. Step 4: Simplify right side
    552,711.40x = 127,038,646,641.66
  5. Step 5: Solve for x
    x = 127,038,646,641.66/552,711.40
  6. Step 6: Final answer
    x = 229,846.26

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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.