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Finding the Fourth Proportional to 127,028.64, 175,300.80 and 70,440.96

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Solution

The fourth proportional to 127,028.64, 175,300.80 and 70,440.96 is: 97,209.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,028.64 : 175,300.80 = 70,440.96 : x
  2. Step 2: Convert to fraction form
    127,028.64/175,300.80 = 70,440.96/x
  3. Step 3: Cross multiply
    127,028.64x = 175,300.80 × 70,440.96
  4. Step 4: Simplify right side
    127,028.64x = 12,348,356,640.77
  5. Step 5: Solve for x
    x = 12,348,356,640.77/127,028.64
  6. Step 6: Final answer
    x = 97,209.23

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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.