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Finding the Fourth Proportional to 186,078.60, 279,117.90 and 176,455.80

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Solution

The fourth proportional to 186,078.60, 279,117.90 and 176,455.80 is: 264,683.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,078.60 : 279,117.90 = 176,455.80 : x
  2. Step 2: Convert to fraction form
    186,078.60/279,117.90 = 176,455.80/x
  3. Step 3: Cross multiply
    186,078.60x = 279,117.90 × 176,455.80
  4. Step 4: Simplify right side
    186,078.60x = 49,251,972,338.82
  5. Step 5: Solve for x
    x = 49,251,972,338.82/186,078.60
  6. Step 6: Final answer
    x = 264,683.70

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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.