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Finding the Fourth Proportional to 202,026.96, 303,302.88 and 155,312.64

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Solution

The fourth proportional to 202,026.96, 303,302.88 and 155,312.64 is: 233,170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,026.96 : 303,302.88 = 155,312.64 : x
  2. Step 2: Convert to fraction form
    202,026.96/303,302.88 = 155,312.64/x
  3. Step 3: Cross multiply
    202,026.96x = 303,302.88 × 155,312.64
  4. Step 4: Simplify right side
    202,026.96x = 47,106,771,012.40
  5. Step 5: Solve for x
    x = 47,106,771,012.40/202,026.96
  6. Step 6: Final answer
    x = 233,170.72

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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.