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Finding the Fourth Proportional to 147,362.92, 220,887 and 84,046.72

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Solution

The fourth proportional to 147,362.92, 220,887 and 84,046.72 is: 125,980.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,362.92 : 220,887 = 84,046.72 : x
  2. Step 2: Convert to fraction form
    147,362.92/220,887 = 84,046.72/x
  3. Step 3: Cross multiply
    147,362.92x = 220,887 × 84,046.72
  4. Step 4: Simplify right side
    147,362.92x = 18,564,827,840.64
  5. Step 5: Solve for x
    x = 18,564,827,840.64/147,362.92
  6. Step 6: Final answer
    x = 125,980.32

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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.