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Finding the Fourth Proportional to 261,333.92, 360,507.84 and 153,898.76

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Solution

The fourth proportional to 261,333.92, 360,507.84 and 153,898.76 is: 212,301.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,333.92 : 360,507.84 = 153,898.76 : x
  2. Step 2: Convert to fraction form
    261,333.92/360,507.84 = 153,898.76/x
  3. Step 3: Cross multiply
    261,333.92x = 360,507.84 × 153,898.76
  4. Step 4: Simplify right side
    261,333.92x = 55,481,709,546.28
  5. Step 5: Solve for x
    x = 55,481,709,546.28/261,333.92
  6. Step 6: Final answer
    x = 212,301.98

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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.