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Finding the Fourth Proportional to 114,927.90, 172,391.85 and 55,878.90

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Solution

The fourth proportional to 114,927.90, 172,391.85 and 55,878.90 is: 83,818.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,927.90 : 172,391.85 = 55,878.90 : x
  2. Step 2: Convert to fraction form
    114,927.90/172,391.85 = 55,878.90/x
  3. Step 3: Cross multiply
    114,927.90x = 172,391.85 × 55,878.90
  4. Step 4: Simplify right side
    114,927.90x = 9,633,066,946.97
  5. Step 5: Solve for x
    x = 9,633,066,946.97/114,927.90
  6. Step 6: Final answer
    x = 83,818.35

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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.