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Finding the Fourth Proportional to 118,043.84, 162,898.48 and 64,329.28

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Solution

The fourth proportional to 118,043.84, 162,898.48 and 64,329.28 is: 88,773.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,043.84 : 162,898.48 = 64,329.28 : x
  2. Step 2: Convert to fraction form
    118,043.84/162,898.48 = 64,329.28/x
  3. Step 3: Cross multiply
    118,043.84x = 162,898.48 × 64,329.28
  4. Step 4: Simplify right side
    118,043.84x = 10,479,141,931.49
  5. Step 5: Solve for x
    x = 10,479,141,931.49/118,043.84
  6. Step 6: Final answer
    x = 88,773.31

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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.