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Finding the Fourth Proportional to 152,585.80, 210,566.20 and 84,602.90

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Solution

The fourth proportional to 152,585.80, 210,566.20 and 84,602.90 is: 116,750.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,585.80 : 210,566.20 = 84,602.90 : x
  2. Step 2: Convert to fraction form
    152,585.80/210,566.20 = 84,602.90/x
  3. Step 3: Cross multiply
    152,585.80x = 210,566.20 × 84,602.90
  4. Step 4: Simplify right side
    152,585.80x = 17,814,511,161.98
  5. Step 5: Solve for x
    x = 17,814,511,161.98/152,585.80
  6. Step 6: Final answer
    x = 116,750.78

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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.