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Finding the Fourth Proportional to 163,661.02, 245,382.78 and 63,830.54

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Solution

The fourth proportional to 163,661.02, 245,382.78 and 63,830.54 is: 95,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,661.02 : 245,382.78 = 63,830.54 : x
  2. Step 2: Convert to fraction form
    163,661.02/245,382.78 = 63,830.54/x
  3. Step 3: Cross multiply
    163,661.02x = 245,382.78 × 63,830.54
  4. Step 4: Simplify right side
    163,661.02x = 15,662,915,354.10
  5. Step 5: Solve for x
    x = 15,662,915,354.10/163,661.02
  6. Step 6: Final answer
    x = 95,703.40

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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.