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Finding the Fourth Proportional to 93,160.71, 128,557.53 and 50,719.14

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Solution

The fourth proportional to 93,160.71, 128,557.53 and 50,719.14 is: 69,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,160.71 : 128,557.53 = 50,719.14 : x
  2. Step 2: Convert to fraction form
    93,160.71/128,557.53 = 50,719.14/x
  3. Step 3: Cross multiply
    93,160.71x = 128,557.53 × 50,719.14
  4. Step 4: Simplify right side
    93,160.71x = 6,520,327,362.12
  5. Step 5: Solve for x
    x = 6,520,327,362.12/93,160.71
  6. Step 6: Final answer
    x = 69,990.10

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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.