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Finding the Fourth Proportional to 93,086.67, 128,462.81 and 50,646.81

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Solution

The fourth proportional to 93,086.67, 128,462.81 and 50,646.81 is: 69,894.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,086.67 : 128,462.81 = 50,646.81 : x
  2. Step 2: Convert to fraction form
    93,086.67/128,462.81 = 50,646.81/x
  3. Step 3: Cross multiply
    93,086.67x = 128,462.81 × 50,646.81
  4. Step 4: Simplify right side
    93,086.67x = 6,506,231,276.90
  5. Step 5: Solve for x
    x = 6,506,231,276.90/93,086.67
  6. Step 6: Final answer
    x = 69,894.34

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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.