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Finding the Fourth Proportional to 180,868.50, 271,302.75 and 70,060.50

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Solution

The fourth proportional to 180,868.50, 271,302.75 and 70,060.50 is: 105,090.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,868.50 : 271,302.75 = 70,060.50 : x
  2. Step 2: Convert to fraction form
    180,868.50/271,302.75 = 70,060.50/x
  3. Step 3: Cross multiply
    180,868.50x = 271,302.75 × 70,060.50
  4. Step 4: Simplify right side
    180,868.50x = 19,007,606,316.38
  5. Step 5: Solve for x
    x = 19,007,606,316.38/180,868.50
  6. Step 6: Final answer
    x = 105,090.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.