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Finding the Fourth Proportional to 132,686.88, 183,099.60 and 73,070.88

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Solution

The fourth proportional to 132,686.88, 183,099.60 and 73,070.88 is: 100,833.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,686.88 : 183,099.60 = 73,070.88 : x
  2. Step 2: Convert to fraction form
    132,686.88/183,099.60 = 73,070.88/x
  3. Step 3: Cross multiply
    132,686.88x = 183,099.60 × 73,070.88
  4. Step 4: Simplify right side
    132,686.88x = 13,379,248,899.65
  5. Step 5: Solve for x
    x = 13,379,248,899.65/132,686.88
  6. Step 6: Final answer
    x = 100,833.25

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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.