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Finding the Fourth Proportional to 112,554.59, 168,831.79 and 45,117.09

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Solution

The fourth proportional to 112,554.59, 168,831.79 and 45,117.09 is: 67,675.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,554.59 : 168,831.79 = 45,117.09 : x
  2. Step 2: Convert to fraction form
    112,554.59/168,831.79 = 45,117.09/x
  3. Step 3: Cross multiply
    112,554.59x = 168,831.79 × 45,117.09
  4. Step 4: Simplify right side
    112,554.59x = 7,617,198,951.50
  5. Step 5: Solve for x
    x = 7,617,198,951.50/112,554.59
  6. Step 6: Final answer
    x = 67,675.60

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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.