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Finding the Fourth Proportional to 252,667.72, 348,702.78 and 145,274.68

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Solution

The fourth proportional to 252,667.72, 348,702.78 and 145,274.68 is: 200,491.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,667.72 : 348,702.78 = 145,274.68 : x
  2. Step 2: Convert to fraction form
    252,667.72/348,702.78 = 145,274.68/x
  3. Step 3: Cross multiply
    252,667.72x = 348,702.78 × 145,274.68
  4. Step 4: Simplify right side
    252,667.72x = 50,657,684,779.61
  5. Step 5: Solve for x
    x = 50,657,684,779.61/252,667.72
  6. Step 6: Final answer
    x = 200,491.32

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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.