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Finding the Fourth Proportional to 292,518.60, 438,923.70 and 166,255.80

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Solution

The fourth proportional to 292,518.60, 438,923.70 and 166,255.80 is: 249,466.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,518.60 : 438,923.70 = 166,255.80 : x
  2. Step 2: Convert to fraction form
    292,518.60/438,923.70 = 166,255.80/x
  3. Step 3: Cross multiply
    292,518.60x = 438,923.70 × 166,255.80
  4. Step 4: Simplify right side
    292,518.60x = 72,973,610,882.46
  5. Step 5: Solve for x
    x = 72,973,610,882.46/292,518.60
  6. Step 6: Final answer
    x = 249,466.57

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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.