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Finding the Fourth Proportional to 101,362.88, 139,850.08 and 70,735.16

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Solution

The fourth proportional to 101,362.88, 139,850.08 and 70,735.16 is: 97,593.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,362.88 : 139,850.08 = 70,735.16 : x
  2. Step 2: Convert to fraction form
    101,362.88/139,850.08 = 70,735.16/x
  3. Step 3: Cross multiply
    101,362.88x = 139,850.08 × 70,735.16
  4. Step 4: Simplify right side
    101,362.88x = 9,892,318,397.67
  5. Step 5: Solve for x
    x = 9,892,318,397.67/101,362.88
  6. Step 6: Final answer
    x = 97,593.10

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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.