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Finding the Fourth Proportional to 261,263.81, 360,577.41 and 153,843.84

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Solution

The fourth proportional to 261,263.81, 360,577.41 and 153,843.84 is: 212,324.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,263.81 : 360,577.41 = 153,843.84 : x
  2. Step 2: Convert to fraction form
    261,263.81/360,577.41 = 153,843.84/x
  3. Step 3: Cross multiply
    261,263.81x = 360,577.41 × 153,843.84
  4. Step 4: Simplify right side
    261,263.81x = 55,472,610,799.55
  5. Step 5: Solve for x
    x = 55,472,610,799.55/261,263.81
  6. Step 6: Final answer
    x = 212,324.13

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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.