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Finding the Fourth Proportional to 124,656.93, 172,003.91 and 73,678.23

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Solution

The fourth proportional to 124,656.93, 172,003.91 and 73,678.23 is: 101,662.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,656.93 : 172,003.91 = 73,678.23 : x
  2. Step 2: Convert to fraction form
    124,656.93/172,003.91 = 73,678.23/x
  3. Step 3: Cross multiply
    124,656.93x = 172,003.91 × 73,678.23
  4. Step 4: Simplify right side
    124,656.93x = 12,672,943,273.49
  5. Step 5: Solve for x
    x = 12,672,943,273.49/124,656.93
  6. Step 6: Final answer
    x = 101,662.57

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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.