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Finding the Fourth Proportional to 292,070.72, 437,661.38 and 216,837.92

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Solution

The fourth proportional to 292,070.72, 437,661.38 and 216,837.92 is: 324,926.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,070.72 : 437,661.38 = 216,837.92 : x
  2. Step 2: Convert to fraction form
    292,070.72/437,661.38 = 216,837.92/x
  3. Step 3: Cross multiply
    292,070.72x = 437,661.38 × 216,837.92
  4. Step 4: Simplify right side
    292,070.72x = 94,901,583,303.53
  5. Step 5: Solve for x
    x = 94,901,583,303.53/292,070.72
  6. Step 6: Final answer
    x = 324,926.73

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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.