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Finding the Fourth Proportional to 186,047.40, 279,071.10 and 59,687.40

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Solution

The fourth proportional to 186,047.40, 279,071.10 and 59,687.40 is: 89,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,047.40 : 279,071.10 = 59,687.40 : x
  2. Step 2: Convert to fraction form
    186,047.40/279,071.10 = 59,687.40/x
  3. Step 3: Cross multiply
    186,047.40x = 279,071.10 × 59,687.40
  4. Step 4: Simplify right side
    186,047.40x = 16,657,028,374.14
  5. Step 5: Solve for x
    x = 16,657,028,374.14/186,047.40
  6. Step 6: Final answer
    x = 89,531.10

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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.