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Finding the Fourth Proportional to 117,971.94, 162,801.51 and 64,256.79

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Solution

The fourth proportional to 117,971.94, 162,801.51 and 64,256.79 is: 88,674.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,971.94 : 162,801.51 = 64,256.79 : x
  2. Step 2: Convert to fraction form
    117,971.94/162,801.51 = 64,256.79/x
  3. Step 3: Cross multiply
    117,971.94x = 162,801.51 × 64,256.79
  4. Step 4: Simplify right side
    117,971.94x = 10,461,102,439.75
  5. Step 5: Solve for x
    x = 10,461,102,439.75/117,971.94
  6. Step 6: Final answer
    x = 88,674.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.