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Finding the Fourth Proportional to 226,689.65, 312,831.24 and 124,714.86

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Solution

The fourth proportional to 226,689.65, 312,831.24 and 124,714.86 is: 172,106.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,689.65 : 312,831.24 = 124,714.86 : x
  2. Step 2: Convert to fraction form
    226,689.65/312,831.24 = 124,714.86/x
  3. Step 3: Cross multiply
    226,689.65x = 312,831.24 × 124,714.86
  4. Step 4: Simplify right side
    226,689.65x = 39,014,704,300.23
  5. Step 5: Solve for x
    x = 39,014,704,300.23/226,689.65
  6. Step 6: Final answer
    x = 172,106.24

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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.