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Finding the Fourth Proportional to 147,316.95, 203,297.40 and 80,248.95

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Solution

The fourth proportional to 147,316.95, 203,297.40 and 80,248.95 is: 110,743.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,316.95 : 203,297.40 = 80,248.95 : x
  2. Step 2: Convert to fraction form
    147,316.95/203,297.40 = 80,248.95/x
  3. Step 3: Cross multiply
    147,316.95x = 203,297.40 × 80,248.95
  4. Step 4: Simplify right side
    147,316.95x = 16,314,402,887.73
  5. Step 5: Solve for x
    x = 16,314,402,887.73/147,316.95
  6. Step 6: Final answer
    x = 110,743.56

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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.