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Finding the Fourth Proportional to 261,260.39, 392,025.45 and 111,460.48

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Solution

The fourth proportional to 261,260.39, 392,025.45 and 111,460.48 is: 167,248.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,260.39 : 392,025.45 = 111,460.48 : x
  2. Step 2: Convert to fraction form
    261,260.39/392,025.45 = 111,460.48/x
  3. Step 3: Cross multiply
    261,260.39x = 392,025.45 × 111,460.48
  4. Step 4: Simplify right side
    261,260.39x = 43,695,342,869.09
  5. Step 5: Solve for x
    x = 43,695,342,869.09/261,260.39
  6. Step 6: Final answer
    x = 167,248.25

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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.