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Finding the Fourth Proportional to 292,173.68, 438,509.20 and 114,804.72

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Solution

The fourth proportional to 292,173.68, 438,509.20 and 114,804.72 is: 172,304.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,173.68 : 438,509.20 = 114,804.72 : x
  2. Step 2: Convert to fraction form
    292,173.68/438,509.20 = 114,804.72/x
  3. Step 3: Cross multiply
    292,173.68x = 438,509.20 × 114,804.72
  4. Step 4: Simplify right side
    292,173.68x = 50,342,925,923.42
  5. Step 5: Solve for x
    x = 50,342,925,923.42/292,173.68
  6. Step 6: Final answer
    x = 172,304.79

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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.