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Finding the Fourth Proportional to 230,300.16, 317,758.59 and 129,698.16

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Solution

The fourth proportional to 230,300.16, 317,758.59 and 129,698.16 is: 178,952.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,300.16 : 317,758.59 = 129,698.16 : x
  2. Step 2: Convert to fraction form
    230,300.16/317,758.59 = 129,698.16/x
  3. Step 3: Cross multiply
    230,300.16x = 317,758.59 × 129,698.16
  4. Step 4: Simplify right side
    230,300.16x = 41,212,704,447.19
  5. Step 5: Solve for x
    x = 41,212,704,447.19/230,300.16
  6. Step 6: Final answer
    x = 178,952.13

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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.