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Finding the Fourth Proportional to 144,460.59, 216,494.05 and 69,575.28

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Solution

The fourth proportional to 144,460.59, 216,494.05 and 69,575.28 is: 104,268.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,460.59 : 216,494.05 = 69,575.28 : x
  2. Step 2: Convert to fraction form
    144,460.59/216,494.05 = 69,575.28/x
  3. Step 3: Cross multiply
    144,460.59x = 216,494.05 × 69,575.28
  4. Step 4: Simplify right side
    144,460.59x = 15,062,634,147.08
  5. Step 5: Solve for x
    x = 15,062,634,147.08/144,460.59
  6. Step 6: Final answer
    x = 104,268.12

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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.