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Finding the Fourth Proportional to 118,630.46, 163,710.01 and 64,915.46

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Solution

The fourth proportional to 118,630.46, 163,710.01 and 64,915.46 is: 89,583.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,630.46 : 163,710.01 = 64,915.46 : x
  2. Step 2: Convert to fraction form
    118,630.46/163,710.01 = 64,915.46/x
  3. Step 3: Cross multiply
    118,630.46x = 163,710.01 × 64,915.46
  4. Step 4: Simplify right side
    118,630.46x = 10,627,310,482.26
  5. Step 5: Solve for x
    x = 10,627,310,482.26/118,630.46
  6. Step 6: Final answer
    x = 89,583.32

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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.