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Finding the Fourth Proportional to 547,812.80, 821,807.52 and 168,733.46

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Solution

The fourth proportional to 547,812.80, 821,807.52 and 168,733.46 is: 253,127.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,812.80 : 821,807.52 = 168,733.46 : x
  2. Step 2: Convert to fraction form
    547,812.80/821,807.52 = 168,733.46/x
  3. Step 3: Cross multiply
    547,812.80x = 821,807.52 × 168,733.46
  4. Step 4: Simplify right side
    547,812.80x = 138,666,426,303.62
  5. Step 5: Solve for x
    x = 138,666,426,303.62/547,812.80
  6. Step 6: Final answer
    x = 253,127.39

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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.