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Finding the Fourth Proportional to 186,438.16, 279,549.24 and 127,345.24

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Solution

The fourth proportional to 186,438.16, 279,549.24 and 127,345.24 is: 190,944.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,438.16 : 279,549.24 = 127,345.24 : x
  2. Step 2: Convert to fraction form
    186,438.16/279,549.24 = 127,345.24/x
  3. Step 3: Cross multiply
    186,438.16x = 279,549.24 × 127,345.24
  4. Step 4: Simplify right side
    186,438.16x = 35,599,265,059.62
  5. Step 5: Solve for x
    x = 35,599,265,059.62/186,438.16
  6. Step 6: Final answer
    x = 190,944.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.