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Finding the Fourth Proportional to 118,473.47, 163,494.48 and 67,485.47

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Solution

The fourth proportional to 118,473.47, 163,494.48 and 67,485.47 is: 93,130.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,473.47 : 163,494.48 = 67,485.47 : x
  2. Step 2: Convert to fraction form
    118,473.47/163,494.48 = 67,485.47/x
  3. Step 3: Cross multiply
    118,473.47x = 163,494.48 × 67,485.47
  4. Step 4: Simplify right side
    118,473.47x = 11,033,501,007.73
  5. Step 5: Solve for x
    x = 11,033,501,007.73/118,473.47
  6. Step 6: Final answer
    x = 93,130.57

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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.