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Finding the Fourth Proportional to 243,762.91, 336,382.55 and 141,788.57

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Solution

The fourth proportional to 243,762.91, 336,382.55 and 141,788.57 is: 195,662.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,762.91 : 336,382.55 = 141,788.57 : x
  2. Step 2: Convert to fraction form
    243,762.91/336,382.55 = 141,788.57/x
  3. Step 3: Cross multiply
    243,762.91x = 336,382.55 × 141,788.57
  4. Step 4: Simplify right side
    243,762.91x = 47,695,201,091.92
  5. Step 5: Solve for x
    x = 47,695,201,091.92/243,762.91
  6. Step 6: Final answer
    x = 195,662.25

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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.