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Finding the Fourth Proportional to 372,697.69, 514,322.81 and 202,931.81

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Solution

The fourth proportional to 372,697.69, 514,322.81 and 202,931.81 is: 280,045.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,697.69 : 514,322.81 = 202,931.81 : x
  2. Step 2: Convert to fraction form
    372,697.69/514,322.81 = 202,931.81/x
  3. Step 3: Cross multiply
    372,697.69x = 514,322.81 × 202,931.81
  4. Step 4: Simplify right side
    372,697.69x = 104,372,460,550.72
  5. Step 5: Solve for x
    x = 104,372,460,550.72/372,697.69
  6. Step 6: Final answer
    x = 280,045.90

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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.