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Finding the Fourth Proportional to 186,088.30, 279,132.45 and 133,600.30

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Solution

The fourth proportional to 186,088.30, 279,132.45 and 133,600.30 is: 200,400.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,088.30 : 279,132.45 = 133,600.30 : x
  2. Step 2: Convert to fraction form
    186,088.30/279,132.45 = 133,600.30/x
  3. Step 3: Cross multiply
    186,088.30x = 279,132.45 × 133,600.30
  4. Step 4: Simplify right side
    186,088.30x = 37,292,179,059.74
  5. Step 5: Solve for x
    x = 37,292,179,059.74/186,088.30
  6. Step 6: Final answer
    x = 200,400.45

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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.