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Finding the Fourth Proportional to 122,152.98, 183,437.50 and 79,530.96

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Solution

The fourth proportional to 122,152.98, 183,437.50 and 79,530.96 is: 119,431.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,152.98 : 183,437.50 = 79,530.96 : x
  2. Step 2: Convert to fraction form
    122,152.98/183,437.50 = 79,530.96/x
  3. Step 3: Cross multiply
    122,152.98x = 183,437.50 × 79,530.96
  4. Step 4: Simplify right side
    122,152.98x = 14,588,960,475.00
  5. Step 5: Solve for x
    x = 14,588,960,475.00/122,152.98
  6. Step 6: Final answer
    x = 119,431.88

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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.