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Finding the Fourth Proportional to 186,511, 257,385.30 and 101,628.04

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Solution

The fourth proportional to 186,511, 257,385.30 and 101,628.04 is: 140,246.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,511 : 257,385.30 = 101,628.04 : x
  2. Step 2: Convert to fraction form
    186,511/257,385.30 = 101,628.04/x
  3. Step 3: Cross multiply
    186,511x = 257,385.30 × 101,628.04
  4. Step 4: Simplify right side
    186,511x = 26,157,563,563.81
  5. Step 5: Solve for x
    x = 26,157,563,563.81/186,511
  6. Step 6: Final answer
    x = 140,246.76

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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.