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Finding the Fourth Proportional to 228,088.86, 314,752.74 and 124,721.16

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Solution

The fourth proportional to 228,088.86, 314,752.74 and 124,721.16 is: 172,109.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,088.86 : 314,752.74 = 124,721.16 : x
  2. Step 2: Convert to fraction form
    228,088.86/314,752.74 = 124,721.16/x
  3. Step 3: Cross multiply
    228,088.86x = 314,752.74 × 124,721.16
  4. Step 4: Simplify right side
    228,088.86x = 39,256,326,845.98
  5. Step 5: Solve for x
    x = 39,256,326,845.98/228,088.86
  6. Step 6: Final answer
    x = 172,109.79

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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.