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Finding the Fourth Proportional to 515,552.58, 773,341.83 and 141,574.50

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Solution

The fourth proportional to 515,552.58, 773,341.83 and 141,574.50 is: 212,365.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,552.58 : 773,341.83 = 141,574.50 : x
  2. Step 2: Convert to fraction form
    515,552.58/773,341.83 = 141,574.50/x
  3. Step 3: Cross multiply
    515,552.58x = 773,341.83 × 141,574.50
  4. Step 4: Simplify right side
    515,552.58x = 109,485,482,911.34
  5. Step 5: Solve for x
    x = 109,485,482,911.34/515,552.58
  6. Step 6: Final answer
    x = 212,365.31

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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.