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Finding the Fourth Proportional to 105,437.80, 158,156.70 and 95,588.20

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Solution

The fourth proportional to 105,437.80, 158,156.70 and 95,588.20 is: 143,382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,437.80 : 158,156.70 = 95,588.20 : x
  2. Step 2: Convert to fraction form
    105,437.80/158,156.70 = 95,588.20/x
  3. Step 3: Cross multiply
    105,437.80x = 158,156.70 × 95,588.20
  4. Step 4: Simplify right side
    105,437.80x = 15,117,914,270.94
  5. Step 5: Solve for x
    x = 15,117,914,270.94/105,437.80
  6. Step 6: Final answer
    x = 143,382.30

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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.