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Finding the Fourth Proportional to 170,666.50, 235,608.30 and 124,674.50

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Solution

The fourth proportional to 170,666.50, 235,608.30 and 124,674.50 is: 172,115.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,666.50 : 235,608.30 = 124,674.50 : x
  2. Step 2: Convert to fraction form
    170,666.50/235,608.30 = 124,674.50/x
  3. Step 3: Cross multiply
    170,666.50x = 235,608.30 × 124,674.50
  4. Step 4: Simplify right side
    170,666.50x = 29,374,346,998.35
  5. Step 5: Solve for x
    x = 29,374,346,998.35/170,666.50
  6. Step 6: Final answer
    x = 172,115.48

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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.