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Finding the Fourth Proportional to 104,988.52, 144,858.18 and 64,142.13

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Solution

The fourth proportional to 104,988.52, 144,858.18 and 64,142.13 is: 88,500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,988.52 : 144,858.18 = 64,142.13 : x
  2. Step 2: Convert to fraction form
    104,988.52/144,858.18 = 64,142.13/x
  3. Step 3: Cross multiply
    104,988.52x = 144,858.18 × 64,142.13
  4. Step 4: Simplify right side
    104,988.52x = 9,291,512,636.08
  5. Step 5: Solve for x
    x = 9,291,512,636.08/104,988.52
  6. Step 6: Final answer
    x = 88,500.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.