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Finding the Fourth Proportional to 118,632.25, 163,711.02 and 64,916.47

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Solution

The fourth proportional to 118,632.25, 163,711.02 and 64,916.47 is: 89,583.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,632.25 : 163,711.02 = 64,916.47 : x
  2. Step 2: Convert to fraction form
    118,632.25/163,711.02 = 64,916.47/x
  3. Step 3: Cross multiply
    118,632.25x = 163,711.02 × 64,916.47
  4. Step 4: Simplify right side
    118,632.25x = 10,627,541,518.50
  5. Step 5: Solve for x
    x = 10,627,541,518.50/118,632.25
  6. Step 6: Final answer
    x = 89,583.92

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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.