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Finding the Fourth Proportional to 125,809.06, 173,619.15 and 69,220.54

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Solution

The fourth proportional to 125,809.06, 173,619.15 and 69,220.54 is: 95,525.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,809.06 : 173,619.15 = 69,220.54 : x
  2. Step 2: Convert to fraction form
    125,809.06/173,619.15 = 69,220.54/x
  3. Step 3: Cross multiply
    125,809.06x = 173,619.15 × 69,220.54
  4. Step 4: Simplify right side
    125,809.06x = 12,018,011,317.34
  5. Step 5: Solve for x
    x = 12,018,011,317.34/125,809.06
  6. Step 6: Final answer
    x = 95,525.80

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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.