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Finding the Fourth Proportional to 417,528.48, 626,313.78 and 118,030.56

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Solution

The fourth proportional to 417,528.48, 626,313.78 and 118,030.56 is: 177,051.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,528.48 : 626,313.78 = 118,030.56 : x
  2. Step 2: Convert to fraction form
    417,528.48/626,313.78 = 118,030.56/x
  3. Step 3: Cross multiply
    417,528.48x = 626,313.78 × 118,030.56
  4. Step 4: Simplify right side
    417,528.48x = 73,924,166,189.12
  5. Step 5: Solve for x
    x = 73,924,166,189.12/417,528.48
  6. Step 6: Final answer
    x = 177,051.79

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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.