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Finding the Fourth Proportional to 118,628.24, 163,706.79 and 64,913.24

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Solution

The fourth proportional to 118,628.24, 163,706.79 and 64,913.24 is: 89,580.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,628.24 : 163,706.79 = 64,913.24 : x
  2. Step 2: Convert to fraction form
    118,628.24/163,706.79 = 64,913.24/x
  3. Step 3: Cross multiply
    118,628.24x = 163,706.79 × 64,913.24
  4. Step 4: Simplify right side
    118,628.24x = 10,626,737,330.37
  5. Step 5: Solve for x
    x = 10,626,737,330.37/118,628.24
  6. Step 6: Final answer
    x = 89,580.17

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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.