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Finding the Fourth Proportional to 71,199.63, 98,258.57 and 39,368.53

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Solution

The fourth proportional to 71,199.63, 98,258.57 and 39,368.53 is: 54,330.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,199.63 : 98,258.57 = 39,368.53 : x
  2. Step 2: Convert to fraction form
    71,199.63/98,258.57 = 39,368.53/x
  3. Step 3: Cross multiply
    71,199.63x = 98,258.57 × 39,368.53
  4. Step 4: Simplify right side
    71,199.63x = 3,868,295,534.41
  5. Step 5: Solve for x
    x = 3,868,295,534.41/71,199.63
  6. Step 6: Final answer
    x = 54,330.27

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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.