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Finding the Fourth Proportional to 356,724.90, 535,087.35 and 107,406.90

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Solution

The fourth proportional to 356,724.90, 535,087.35 and 107,406.90 is: 161,110.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,724.90 : 535,087.35 = 107,406.90 : x
  2. Step 2: Convert to fraction form
    356,724.90/535,087.35 = 107,406.90/x
  3. Step 3: Cross multiply
    356,724.90x = 535,087.35 × 107,406.90
  4. Step 4: Simplify right side
    356,724.90x = 57,472,073,492.72
  5. Step 5: Solve for x
    x = 57,472,073,492.72/356,724.90
  6. Step 6: Final answer
    x = 161,110.35

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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.