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Finding the Fourth Proportional to 202,963.30, 280,089.90 and 112,325.52

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Solution

The fourth proportional to 202,963.30, 280,089.90 and 112,325.52 is: 155,009.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,963.30 : 280,089.90 = 112,325.52 : x
  2. Step 2: Convert to fraction form
    202,963.30/280,089.90 = 112,325.52/x
  3. Step 3: Cross multiply
    202,963.30x = 280,089.90 × 112,325.52
  4. Step 4: Simplify right side
    202,963.30x = 31,461,243,664.25
  5. Step 5: Solve for x
    x = 31,461,243,664.25/202,963.30
  6. Step 6: Final answer
    x = 155,009.52

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1.5x scale

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.