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Finding the Fourth Proportional to 186,048.40, 279,072.60 and 59,688.40

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Solution

The fourth proportional to 186,048.40, 279,072.60 and 59,688.40 is: 89,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,048.40 : 279,072.60 = 59,688.40 : x
  2. Step 2: Convert to fraction form
    186,048.40/279,072.60 = 59,688.40/x
  3. Step 3: Cross multiply
    186,048.40x = 279,072.60 × 59,688.40
  4. Step 4: Simplify right side
    186,048.40x = 16,657,396,977.84
  5. Step 5: Solve for x
    x = 16,657,396,977.84/186,048.40
  6. Step 6: Final answer
    x = 89,532.60

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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.