Home / 186,276.67-279,421.80-66,342.45

Finding the Fourth Proportional to 186,276.67, 279,421.80 and 66,342.45

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Solution

The fourth proportional to 186,276.67, 279,421.80 and 66,342.45 is: 99,516.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,276.67 : 279,421.80 = 66,342.45 : x
  2. Step 2: Convert to fraction form
    186,276.67/279,421.80 = 66,342.45/x
  3. Step 3: Cross multiply
    186,276.67x = 279,421.80 × 66,342.45
  4. Step 4: Simplify right side
    186,276.67x = 18,537,526,795.41
  5. Step 5: Solve for x
    x = 18,537,526,795.41/186,276.67
  6. Step 6: Final answer
    x = 99,516.10

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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.