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Finding the Fourth Proportional to 178,316.90, 267,510.38 and 65,998.09

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Solution

The fourth proportional to 178,316.90, 267,510.38 and 65,998.09 is: 99,010.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,316.90 : 267,510.38 = 65,998.09 : x
  2. Step 2: Convert to fraction form
    178,316.90/267,510.38 = 65,998.09/x
  3. Step 3: Cross multiply
    178,316.90x = 267,510.38 × 65,998.09
  4. Step 4: Simplify right side
    178,316.90x = 17,655,174,139.57
  5. Step 5: Solve for x
    x = 17,655,174,139.57/178,316.90
  6. Step 6: Final answer
    x = 99,010.10

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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.