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Finding the Fourth Proportional to 144,894.60, 216,881.10 and 103,422.60

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Solution

The fourth proportional to 144,894.60, 216,881.10 and 103,422.60 is: 154,804.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,894.60 : 216,881.10 = 103,422.60 : x
  2. Step 2: Convert to fraction form
    144,894.60/216,881.10 = 103,422.60/x
  3. Step 3: Cross multiply
    144,894.60x = 216,881.10 × 103,422.60
  4. Step 4: Simplify right side
    144,894.60x = 22,430,407,252.86
  5. Step 5: Solve for x
    x = 22,430,407,252.86/144,894.60
  6. Step 6: Final answer
    x = 154,804.99

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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.