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Finding the Fourth Proportional to 168,547.80, 252,821.70 and 154,113.60

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Solution

The fourth proportional to 168,547.80, 252,821.70 and 154,113.60 is: 231,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,547.80 : 252,821.70 = 154,113.60 : x
  2. Step 2: Convert to fraction form
    168,547.80/252,821.70 = 154,113.60/x
  3. Step 3: Cross multiply
    168,547.80x = 252,821.70 × 154,113.60
  4. Step 4: Simplify right side
    168,547.80x = 38,963,262,345.12
  5. Step 5: Solve for x
    x = 38,963,262,345.12/168,547.80
  6. Step 6: Final answer
    x = 231,170.40

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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.