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Finding the Fourth Proportional to 292,756.89, 438,836.04 and 166,129.59

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Solution

The fourth proportional to 292,756.89, 438,836.04 and 166,129.59 is: 249,024.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,756.89 : 438,836.04 = 166,129.59 : x
  2. Step 2: Convert to fraction form
    292,756.89/438,836.04 = 166,129.59/x
  3. Step 3: Cross multiply
    292,756.89x = 438,836.04 × 166,129.59
  4. Step 4: Simplify right side
    292,756.89x = 72,903,651,402.42
  5. Step 5: Solve for x
    x = 72,903,651,402.42/292,756.89
  6. Step 6: Final answer
    x = 249,024.55

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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.