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Finding the Fourth Proportional to 474,115.84, 711,166.28 and 119,130.10

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Solution

The fourth proportional to 474,115.84, 711,166.28 and 119,130.10 is: 178,693.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,115.84 : 711,166.28 = 119,130.10 : x
  2. Step 2: Convert to fraction form
    474,115.84/711,166.28 = 119,130.10/x
  3. Step 3: Cross multiply
    474,115.84x = 711,166.28 × 119,130.10
  4. Step 4: Simplify right side
    474,115.84x = 84,721,310,053.03
  5. Step 5: Solve for x
    x = 84,721,310,053.03/474,115.84
  6. Step 6: Final answer
    x = 178,693.27

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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.