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Finding the Fourth Proportional to 169,644.60, 254,612.70 and 75,020.40

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Solution

The fourth proportional to 169,644.60, 254,612.70 and 75,020.40 is: 112,595.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,644.60 : 254,612.70 = 75,020.40 : x
  2. Step 2: Convert to fraction form
    169,644.60/254,612.70 = 75,020.40/x
  3. Step 3: Cross multiply
    169,644.60x = 254,612.70 × 75,020.40
  4. Step 4: Simplify right side
    169,644.60x = 19,101,146,599.08
  5. Step 5: Solve for x
    x = 19,101,146,599.08/169,644.60
  6. Step 6: Final answer
    x = 112,595.08

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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.