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Finding the Fourth Proportional to 144,345.54, 216,460.86 and 55,549.68

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Solution

The fourth proportional to 144,345.54, 216,460.86 and 55,549.68 is: 83,302.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,345.54 : 216,460.86 = 55,549.68 : x
  2. Step 2: Convert to fraction form
    144,345.54/216,460.86 = 55,549.68/x
  3. Step 3: Cross multiply
    144,345.54x = 216,460.86 × 55,549.68
  4. Step 4: Simplify right side
    144,345.54x = 12,024,331,505.52
  5. Step 5: Solve for x
    x = 12,024,331,505.52/144,345.54
  6. Step 6: Final answer
    x = 83,302.41

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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.