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Finding the Fourth Proportional to 144,043.52, 216,143.04 and 70,171.52

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Solution

The fourth proportional to 144,043.52, 216,143.04 and 70,171.52 is: 105,295.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,043.52 : 216,143.04 = 70,171.52 : x
  2. Step 2: Convert to fraction form
    144,043.52/216,143.04 = 70,171.52/x
  3. Step 3: Cross multiply
    144,043.52x = 216,143.04 × 70,171.52
  4. Step 4: Simplify right side
    144,043.52x = 15,167,085,654.22
  5. Step 5: Solve for x
    x = 15,167,085,654.22/144,043.52
  6. Step 6: Final answer
    x = 105,295.16

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1.5x scale

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.