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Finding the Fourth Proportional to 163,612.90, 245,318.81 and 63,656.67

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Solution

The fourth proportional to 163,612.90, 245,318.81 and 63,656.67 is: 95,445.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,612.90 : 245,318.81 = 63,656.67 : x
  2. Step 2: Convert to fraction form
    163,612.90/245,318.81 = 63,656.67/x
  3. Step 3: Cross multiply
    163,612.90x = 245,318.81 × 63,656.67
  4. Step 4: Simplify right side
    163,612.90x = 15,616,178,532.96
  5. Step 5: Solve for x
    x = 15,616,178,532.96/163,612.90
  6. Step 6: Final answer
    x = 95,445.89

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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.