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Finding the Fourth Proportional to 127,082.60, 190,623.90 and 70,001.90

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Solution

The fourth proportional to 127,082.60, 190,623.90 and 70,001.90 is: 105,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,082.60 : 190,623.90 = 70,001.90 : x
  2. Step 2: Convert to fraction form
    127,082.60/190,623.90 = 70,001.90/x
  3. Step 3: Cross multiply
    127,082.60x = 190,623.90 × 70,001.90
  4. Step 4: Simplify right side
    127,082.60x = 13,344,035,185.41
  5. Step 5: Solve for x
    x = 13,344,035,185.41/127,082.60
  6. Step 6: Final answer
    x = 105,002.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.