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Finding the Fourth Proportional to 165,506.76, 228,398.70 and 93,900.60

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Solution

The fourth proportional to 165,506.76, 228,398.70 and 93,900.60 is: 129,582.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,506.76 : 228,398.70 = 93,900.60 : x
  2. Step 2: Convert to fraction form
    165,506.76/228,398.70 = 93,900.60/x
  3. Step 3: Cross multiply
    165,506.76x = 228,398.70 × 93,900.60
  4. Step 4: Simplify right side
    165,506.76x = 21,446,774,969.22
  5. Step 5: Solve for x
    x = 21,446,774,969.22/165,506.76
  6. Step 6: Final answer
    x = 129,582.47

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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.