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Finding the Fourth Proportional to 90,757.84, 136,018.44 and 46,347.16

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Solution

The fourth proportional to 90,757.84, 136,018.44 and 46,347.16 is: 69,460.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,757.84 : 136,018.44 = 46,347.16 : x
  2. Step 2: Convert to fraction form
    90,757.84/136,018.44 = 46,347.16/x
  3. Step 3: Cross multiply
    90,757.84x = 136,018.44 × 46,347.16
  4. Step 4: Simplify right side
    90,757.84x = 6,304,068,401.63
  5. Step 5: Solve for x
    x = 6,304,068,401.63/90,757.84
  6. Step 6: Final answer
    x = 69,460.32

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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.