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Finding the Fourth Proportional to 134,874.80, 202,312.20 and 55,980.80

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Solution

The fourth proportional to 134,874.80, 202,312.20 and 55,980.80 is: 83,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,874.80 : 202,312.20 = 55,980.80 : x
  2. Step 2: Convert to fraction form
    134,874.80/202,312.20 = 55,980.80/x
  3. Step 3: Cross multiply
    134,874.80x = 202,312.20 × 55,980.80
  4. Step 4: Simplify right side
    134,874.80x = 11,325,598,805.76
  5. Step 5: Solve for x
    x = 11,325,598,805.76/134,874.80
  6. Step 6: Final answer
    x = 83,971.20

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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.