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Finding the Fourth Proportional to 372,639.16, 514,225.72 and 202,873.24

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Solution

The fourth proportional to 372,639.16, 514,225.72 and 202,873.24 is: 279,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,639.16 : 514,225.72 = 202,873.24 : x
  2. Step 2: Convert to fraction form
    372,639.16/514,225.72 = 202,873.24/x
  3. Step 3: Cross multiply
    372,639.16x = 514,225.72 × 202,873.24
  4. Step 4: Simplify right side
    372,639.16x = 104,322,637,907.73
  5. Step 5: Solve for x
    x = 104,322,637,907.73/372,639.16
  6. Step 6: Final answer
    x = 279,956.19

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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.