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Finding the Fourth Proportional to 144,880.61, 217,275.91 and 69,954.17

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Solution

The fourth proportional to 144,880.61, 217,275.91 and 69,954.17 is: 104,909.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,880.61 : 217,275.91 = 69,954.17 : x
  2. Step 2: Convert to fraction form
    144,880.61/217,275.91 = 69,954.17/x
  3. Step 3: Cross multiply
    144,880.61x = 217,275.91 × 69,954.17
  4. Step 4: Simplify right side
    144,880.61x = 15,199,354,683.78
  5. Step 5: Solve for x
    x = 15,199,354,683.78/144,880.61
  6. Step 6: Final answer
    x = 104,909.52

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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.