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Finding the Fourth Proportional to 124,085, 171,237.38 and 70,352.84

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Solution

The fourth proportional to 124,085, 171,237.38 and 70,352.84 is: 97,086.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,085 : 171,237.38 = 70,352.84 : x
  2. Step 2: Convert to fraction form
    124,085/171,237.38 = 70,352.84/x
  3. Step 3: Cross multiply
    124,085x = 171,237.38 × 70,352.84
  4. Step 4: Simplify right side
    124,085x = 12,047,035,997.16
  5. Step 5: Solve for x
    x = 12,047,035,997.16/124,085
  6. Step 6: Final answer
    x = 97,086.96

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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.