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Finding the Fourth Proportional to 273,328.42, 377,030.84 and 212,803.20

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Solution

The fourth proportional to 273,328.42, 377,030.84 and 212,803.20 is: 293,541.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,328.42 : 377,030.84 = 212,803.20 : x
  2. Step 2: Convert to fraction form
    273,328.42/377,030.84 = 212,803.20/x
  3. Step 3: Cross multiply
    273,328.42x = 377,030.84 × 212,803.20
  4. Step 4: Simplify right side
    273,328.42x = 80,233,366,301.52
  5. Step 5: Solve for x
    x = 80,233,366,301.52/273,328.42
  6. Step 6: Final answer
    x = 293,541.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.