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Finding the Fourth Proportional to 261,290.01, 360,579.96 and 148,112.76

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Solution

The fourth proportional to 261,290.01, 360,579.96 and 148,112.76 is: 204,395.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,290.01 : 360,579.96 = 148,112.76 : x
  2. Step 2: Convert to fraction form
    261,290.01/360,579.96 = 148,112.76/x
  3. Step 3: Cross multiply
    261,290.01x = 360,579.96 × 148,112.76
  4. Step 4: Simplify right side
    261,290.01x = 53,406,493,076.29
  5. Step 5: Solve for x
    x = 53,406,493,076.29/261,290.01
  6. Step 6: Final answer
    x = 204,395.46

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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.