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Finding the Fourth Proportional to 144,897.71, 217,328.13 and 56,090.52

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Solution

The fourth proportional to 144,897.71, 217,328.13 and 56,090.52 is: 84,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,897.71 : 217,328.13 = 56,090.52 : x
  2. Step 2: Convert to fraction form
    144,897.71/217,328.13 = 56,090.52/x
  3. Step 3: Cross multiply
    144,897.71x = 217,328.13 × 56,090.52
  4. Step 4: Simplify right side
    144,897.71x = 12,190,047,822.33
  5. Step 5: Solve for x
    x = 12,190,047,822.33/144,897.71
  6. Step 6: Final answer
    x = 84,128.65

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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.