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Finding the Fourth Proportional to 134,469.10, 201,703.65 and 84,702.70

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Solution

The fourth proportional to 134,469.10, 201,703.65 and 84,702.70 is: 127,054.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,469.10 : 201,703.65 = 84,702.70 : x
  2. Step 2: Convert to fraction form
    134,469.10/201,703.65 = 84,702.70/x
  3. Step 3: Cross multiply
    134,469.10x = 201,703.65 × 84,702.70
  4. Step 4: Simplify right side
    134,469.10x = 17,084,843,754.86
  5. Step 5: Solve for x
    x = 17,084,843,754.86/134,469.10
  6. Step 6: Final answer
    x = 127,054.05

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1.5x scale

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.