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Finding the Fourth Proportional to 165,722.88, 228,688.80 and 94,101.12

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Solution

The fourth proportional to 165,722.88, 228,688.80 and 94,101.12 is: 129,854.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,722.88 : 228,688.80 = 94,101.12 : x
  2. Step 2: Convert to fraction form
    165,722.88/228,688.80 = 94,101.12/x
  3. Step 3: Cross multiply
    165,722.88x = 228,688.80 × 94,101.12
  4. Step 4: Simplify right side
    165,722.88x = 21,519,872,211.46
  5. Step 5: Solve for x
    x = 21,519,872,211.46/165,722.88
  6. Step 6: Final answer
    x = 129,854.56

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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.