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Finding the Fourth Proportional to 117,321.01, 176,014.32 and 38,490.59

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Solution

The fourth proportional to 117,321.01, 176,014.32 and 38,490.59 is: 57,746.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,321.01 : 176,014.32 = 38,490.59 : x
  2. Step 2: Convert to fraction form
    117,321.01/176,014.32 = 38,490.59/x
  3. Step 3: Cross multiply
    117,321.01x = 176,014.32 × 38,490.59
  4. Step 4: Simplify right side
    117,321.01x = 6,774,895,320.94
  5. Step 5: Solve for x
    x = 6,774,895,320.94/117,321.01
  6. Step 6: Final answer
    x = 57,746.65

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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.