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Finding the Fourth Proportional to 378,607.48, 567,908.34 and 112,368.76

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Solution

The fourth proportional to 378,607.48, 567,908.34 and 112,368.76 is: 168,552.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,607.48 : 567,908.34 = 112,368.76 : x
  2. Step 2: Convert to fraction form
    378,607.48/567,908.34 = 112,368.76/x
  3. Step 3: Cross multiply
    378,607.48x = 567,908.34 × 112,368.76
  4. Step 4: Simplify right side
    378,607.48x = 63,815,155,959.46
  5. Step 5: Solve for x
    x = 63,815,155,959.46/378,607.48
  6. Step 6: Final answer
    x = 168,552.29

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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.