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Finding the Fourth Proportional to 110,675.50, 152,362.80 and 105,591.40

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Solution

The fourth proportional to 110,675.50, 152,362.80 and 105,591.40 is: 145,363.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,675.50 : 152,362.80 = 105,591.40 : x
  2. Step 2: Convert to fraction form
    110,675.50/152,362.80 = 105,591.40/x
  3. Step 3: Cross multiply
    110,675.50x = 152,362.80 × 105,591.40
  4. Step 4: Simplify right side
    110,675.50x = 16,088,200,979.01
  5. Step 5: Solve for x
    x = 16,088,200,979.01/110,675.50
  6. Step 6: Final answer
    x = 145,363.71

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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.