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Finding the Fourth Proportional to 116,628.20, 175,071.90 and 64,140.20

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Solution

The fourth proportional to 116,628.20, 175,071.90 and 64,140.20 is: 96,281.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,628.20 : 175,071.90 = 64,140.20 : x
  2. Step 2: Convert to fraction form
    116,628.20/175,071.90 = 64,140.20/x
  3. Step 3: Cross multiply
    116,628.20x = 175,071.90 × 64,140.20
  4. Step 4: Simplify right side
    116,628.20x = 11,229,146,680.38
  5. Step 5: Solve for x
    x = 11,229,146,680.38/116,628.20
  6. Step 6: Final answer
    x = 96,281.57

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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.