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Finding the Fourth Proportional to 191,304.40, 286,276.20 and 166,615.60

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Solution

The fourth proportional to 191,304.40, 286,276.20 and 166,615.60 is: 249,330.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,304.40 : 286,276.20 = 166,615.60 : x
  2. Step 2: Convert to fraction form
    191,304.40/286,276.20 = 166,615.60/x
  3. Step 3: Cross multiply
    191,304.40x = 286,276.20 × 166,615.60
  4. Step 4: Simplify right side
    191,304.40x = 47,698,080,828.72
  5. Step 5: Solve for x
    x = 47,698,080,828.72/191,304.40
  6. Step 6: Final answer
    x = 249,330.81

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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.