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Finding the Fourth Proportional to 186,478.04, 279,804.54 and 92,991.08

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Solution

The fourth proportional to 186,478.04, 279,804.54 and 92,991.08 is: 139,530.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,478.04 : 279,804.54 = 92,991.08 : x
  2. Step 2: Convert to fraction form
    186,478.04/279,804.54 = 92,991.08/x
  3. Step 3: Cross multiply
    186,478.04x = 279,804.54 × 92,991.08
  4. Step 4: Simplify right side
    186,478.04x = 26,019,326,363.50
  5. Step 5: Solve for x
    x = 26,019,326,363.50/186,478.04
  6. Step 6: Final answer
    x = 139,530.24

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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.