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Finding the Fourth Proportional to 261,319.94, 392,018.89 and 92,826.17

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Solution

The fourth proportional to 261,319.94, 392,018.89 and 92,826.17 is: 139,253.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,319.94 : 392,018.89 = 92,826.17 : x
  2. Step 2: Convert to fraction form
    261,319.94/392,018.89 = 92,826.17/x
  3. Step 3: Cross multiply
    261,319.94x = 392,018.89 × 92,826.17
  4. Step 4: Simplify right side
    261,319.94x = 36,389,612,126.35
  5. Step 5: Solve for x
    x = 36,389,612,126.35/261,319.94
  6. Step 6: Final answer
    x = 139,253.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.