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Finding the Fourth Proportional to 261,291.01, 360,581.34 and 148,113.76

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Solution

The fourth proportional to 261,291.01, 360,581.34 and 148,113.76 is: 204,396.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,291.01 : 360,581.34 = 148,113.76 : x
  2. Step 2: Convert to fraction form
    261,291.01/360,581.34 = 148,113.76/x
  3. Step 3: Cross multiply
    261,291.01x = 360,581.34 × 148,113.76
  4. Step 4: Simplify right side
    261,291.01x = 53,407,058,053.24
  5. Step 5: Solve for x
    x = 53,407,058,053.24/261,291.01
  6. Step 6: Final answer
    x = 204,396.84

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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.