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Finding the Fourth Proportional to 127,424.06, 175,855.84 and 70,840.70

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Solution

The fourth proportional to 127,424.06, 175,855.84 and 70,840.70 is: 97,766.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,424.06 : 175,855.84 = 70,840.70 : x
  2. Step 2: Convert to fraction form
    127,424.06/175,855.84 = 70,840.70/x
  3. Step 3: Cross multiply
    127,424.06x = 175,855.84 × 70,840.70
  4. Step 4: Simplify right side
    127,424.06x = 12,457,750,804.69
  5. Step 5: Solve for x
    x = 12,457,750,804.69/127,424.06
  6. Step 6: Final answer
    x = 97,766.08

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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.