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Finding the Fourth Proportional to 144,894.40, 217,341.60 and 121,566.40

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Solution

The fourth proportional to 144,894.40, 217,341.60 and 121,566.40 is: 182,349.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,894.40 : 217,341.60 = 121,566.40 : x
  2. Step 2: Convert to fraction form
    144,894.40/217,341.60 = 121,566.40/x
  3. Step 3: Cross multiply
    144,894.40x = 217,341.60 × 121,566.40
  4. Step 4: Simplify right side
    144,894.40x = 26,421,435,882.24
  5. Step 5: Solve for x
    x = 26,421,435,882.24/144,894.40
  6. Step 6: Final answer
    x = 182,349.60

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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.