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Finding the Fourth Proportional to 127,409.06, 175,820.18 and 70,819.22

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Solution

The fourth proportional to 127,409.06, 175,820.18 and 70,819.22 is: 97,728.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,409.06 : 175,820.18 = 70,819.22 : x
  2. Step 2: Convert to fraction form
    127,409.06/175,820.18 = 70,819.22/x
  3. Step 3: Cross multiply
    127,409.06x = 175,820.18 × 70,819.22
  4. Step 4: Simplify right side
    127,409.06x = 12,451,446,774.66
  5. Step 5: Solve for x
    x = 12,451,446,774.66/127,409.06
  6. Step 6: Final answer
    x = 97,728.11

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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.