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Finding the Fourth Proportional to 144,700.60, 217,022.10 and 69,820.60

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Solution

The fourth proportional to 144,700.60, 217,022.10 and 69,820.60 is: 104,717.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,700.60 : 217,022.10 = 69,820.60 : x
  2. Step 2: Convert to fraction form
    144,700.60/217,022.10 = 69,820.60/x
  3. Step 3: Cross multiply
    144,700.60x = 217,022.10 × 69,820.60
  4. Step 4: Simplify right side
    144,700.60x = 15,152,613,235.26
  5. Step 5: Solve for x
    x = 15,152,613,235.26/144,700.60
  6. Step 6: Final answer
    x = 104,717.00

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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.