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Finding the Fourth Proportional to 124,590.80, 186,886.20 and 50,718.80

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Solution

The fourth proportional to 124,590.80, 186,886.20 and 50,718.80 is: 76,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,590.80 : 186,886.20 = 50,718.80 : x
  2. Step 2: Convert to fraction form
    124,590.80/186,886.20 = 50,718.80/x
  3. Step 3: Cross multiply
    124,590.80x = 186,886.20 × 50,718.80
  4. Step 4: Simplify right side
    124,590.80x = 9,478,643,800.56
  5. Step 5: Solve for x
    x = 9,478,643,800.56/124,590.80
  6. Step 6: Final answer
    x = 76,078.20

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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.