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Finding the Fourth Proportional to 169,547.40, 254,321.10 and 51,206.40

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Solution

The fourth proportional to 169,547.40, 254,321.10 and 51,206.40 is: 76,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,547.40 : 254,321.10 = 51,206.40 : x
  2. Step 2: Convert to fraction form
    169,547.40/254,321.10 = 51,206.40/x
  3. Step 3: Cross multiply
    169,547.40x = 254,321.10 × 51,206.40
  4. Step 4: Simplify right side
    169,547.40x = 13,022,867,975.04
  5. Step 5: Solve for x
    x = 13,022,867,975.04/169,547.40
  6. Step 6: Final answer
    x = 76,809.60

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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.