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Finding the Fourth Proportional to 258,360.63, 387,465.62 and 100,551.57

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Solution

The fourth proportional to 258,360.63, 387,465.62 and 100,551.57 is: 150,798.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,360.63 : 387,465.62 = 100,551.57 : x
  2. Step 2: Convert to fraction form
    258,360.63/387,465.62 = 100,551.57/x
  3. Step 3: Cross multiply
    258,360.63x = 387,465.62 × 100,551.57
  4. Step 4: Simplify right side
    258,360.63x = 38,960,275,909.27
  5. Step 5: Solve for x
    x = 38,960,275,909.27/258,360.63
  6. Step 6: Final answer
    x = 150,798.04

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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.