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Finding the Fourth Proportional to 261,600.84, 361,018.08 and 154,262.88

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Solution

The fourth proportional to 261,600.84, 361,018.08 and 154,262.88 is: 212,888.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,600.84 : 361,018.08 = 154,262.88 : x
  2. Step 2: Convert to fraction form
    261,600.84/361,018.08 = 154,262.88/x
  3. Step 3: Cross multiply
    261,600.84x = 361,018.08 × 154,262.88
  4. Step 4: Simplify right side
    261,600.84x = 55,691,688,752.87
  5. Step 5: Solve for x
    x = 55,691,688,752.87/261,600.84
  6. Step 6: Final answer
    x = 212,888.03

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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.