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Finding the Fourth Proportional to 127,436.25, 175,862.24 and 70,847.63

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Solution

The fourth proportional to 127,436.25, 175,862.24 and 70,847.63 is: 97,769.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,436.25 : 175,862.24 = 70,847.63 : x
  2. Step 2: Convert to fraction form
    127,436.25/175,862.24 = 70,847.63/x
  3. Step 3: Cross multiply
    127,436.25x = 175,862.24 × 70,847.63
  4. Step 4: Simplify right side
    127,436.25x = 12,459,421,676.94
  5. Step 5: Solve for x
    x = 12,459,421,676.94/127,436.25
  6. Step 6: Final answer
    x = 97,769.84

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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.