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Finding the Fourth Proportional to 186,159.83, 279,045.32 and 91,258.61

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Solution

The fourth proportional to 186,159.83, 279,045.32 and 91,258.61 is: 136,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,159.83 : 279,045.32 = 91,258.61 : x
  2. Step 2: Convert to fraction form
    186,159.83/279,045.32 = 91,258.61/x
  3. Step 3: Cross multiply
    186,159.83x = 279,045.32 × 91,258.61
  4. Step 4: Simplify right side
    186,159.83x = 25,465,286,178.69
  5. Step 5: Solve for x
    x = 25,465,286,178.69/186,159.83
  6. Step 6: Final answer
    x = 136,792.60

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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.