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Finding the Fourth Proportional to 167,153.51, 250,730.25 and 78,407.02

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Solution

The fourth proportional to 167,153.51, 250,730.25 and 78,407.02 is: 117,610.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,153.51 : 250,730.25 = 78,407.02 : x
  2. Step 2: Convert to fraction form
    167,153.51/250,730.25 = 78,407.02/x
  3. Step 3: Cross multiply
    167,153.51x = 250,730.25 × 78,407.02
  4. Step 4: Simplify right side
    167,153.51x = 19,659,011,726.36
  5. Step 5: Solve for x
    x = 19,659,011,726.36/167,153.51
  6. Step 6: Final answer
    x = 117,610.52

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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.