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Finding the Fourth Proportional to 147,909.40, 221,892.90 and 63,669.40

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Solution

The fourth proportional to 147,909.40, 221,892.90 and 63,669.40 is: 95,516.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,909.40 : 221,892.90 = 63,669.40 : x
  2. Step 2: Convert to fraction form
    147,909.40/221,892.90 = 63,669.40/x
  3. Step 3: Cross multiply
    147,909.40x = 221,892.90 × 63,669.40
  4. Step 4: Simplify right side
    147,909.40x = 14,127,787,807.26
  5. Step 5: Solve for x
    x = 14,127,787,807.26/147,909.40
  6. Step 6: Final answer
    x = 95,516.50

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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.