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Finding the Fourth Proportional to 118,045.63, 162,898.21 and 64,329.49

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Solution

The fourth proportional to 118,045.63, 162,898.21 and 64,329.49 is: 88,772.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,045.63 : 162,898.21 = 64,329.49 : x
  2. Step 2: Convert to fraction form
    118,045.63/162,898.21 = 64,329.49/x
  3. Step 3: Cross multiply
    118,045.63x = 162,898.21 × 64,329.49
  4. Step 4: Simplify right side
    118,045.63x = 10,479,159,055.25
  5. Step 5: Solve for x
    x = 10,479,159,055.25/118,045.63
  6. Step 6: Final answer
    x = 88,772.10

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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.