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Finding the Fourth Proportional to 93,396.42, 128,887.50 and 50,955.90

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Solution

The fourth proportional to 93,396.42, 128,887.50 and 50,955.90 is: 70,319.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,396.42 : 128,887.50 = 50,955.90 : x
  2. Step 2: Convert to fraction form
    93,396.42/128,887.50 = 50,955.90/x
  3. Step 3: Cross multiply
    93,396.42x = 128,887.50 × 50,955.90
  4. Step 4: Simplify right side
    93,396.42x = 6,567,578,561.25
  5. Step 5: Solve for x
    x = 6,567,578,561.25/93,396.42
  6. Step 6: Final answer
    x = 70,319.38

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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.