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Finding the Fourth Proportional to 342,033.48, 472,002.72 and 191,130.48

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Solution

The fourth proportional to 342,033.48, 472,002.72 and 191,130.48 is: 263,758.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,033.48 : 472,002.72 = 191,130.48 : x
  2. Step 2: Convert to fraction form
    342,033.48/472,002.72 = 191,130.48/x
  3. Step 3: Cross multiply
    342,033.48x = 472,002.72 × 191,130.48
  4. Step 4: Simplify right side
    342,033.48x = 90,214,106,434.91
  5. Step 5: Solve for x
    x = 90,214,106,434.91/342,033.48
  6. Step 6: Final answer
    x = 263,758.12

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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.