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Finding the Fourth Proportional to 349,909.80, 524,864.70 and 113,276.40

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Solution

The fourth proportional to 349,909.80, 524,864.70 and 113,276.40 is: 169,914.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,909.80 : 524,864.70 = 113,276.40 : x
  2. Step 2: Convert to fraction form
    349,909.80/524,864.70 = 113,276.40/x
  3. Step 3: Cross multiply
    349,909.80x = 524,864.70 × 113,276.40
  4. Step 4: Simplify right side
    349,909.80x = 59,454,783,703.08
  5. Step 5: Solve for x
    x = 59,454,783,703.08/349,909.80
  6. Step 6: Final answer
    x = 169,914.60

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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.