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Finding the Fourth Proportional to 163,765.16, 244,223.12 and 145,621.97

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Solution

The fourth proportional to 163,765.16, 244,223.12 and 145,621.97 is: 217,166.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,765.16 : 244,223.12 = 145,621.97 : x
  2. Step 2: Convert to fraction form
    163,765.16/244,223.12 = 145,621.97/x
  3. Step 3: Cross multiply
    163,765.16x = 244,223.12 × 145,621.97
  4. Step 4: Simplify right side
    163,765.16x = 35,564,249,904.72
  5. Step 5: Solve for x
    x = 35,564,249,904.72/163,765.16
  6. Step 6: Final answer
    x = 217,166.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.