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Finding the Fourth Proportional to 245,347.64, 338,836.74 and 169,065.08

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Solution

The fourth proportional to 245,347.64, 338,836.74 and 169,065.08 is: 233,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,347.64 : 338,836.74 = 169,065.08 : x
  2. Step 2: Convert to fraction form
    245,347.64/338,836.74 = 169,065.08/x
  3. Step 3: Cross multiply
    245,347.64x = 338,836.74 × 169,065.08
  4. Step 4: Simplify right side
    245,347.64x = 57,285,460,555.04
  5. Step 5: Solve for x
    x = 57,285,460,555.04/245,347.64
  6. Step 6: Final answer
    x = 233,486.90

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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.