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Finding the Fourth Proportional to 216,998.55, 299,180.39 and 148,897.26

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Solution

The fourth proportional to 216,998.55, 299,180.39 and 148,897.26 is: 205,287.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,998.55 : 299,180.39 = 148,897.26 : x
  2. Step 2: Convert to fraction form
    216,998.55/299,180.39 = 148,897.26/x
  3. Step 3: Cross multiply
    216,998.55x = 299,180.39 × 148,897.26
  4. Step 4: Simplify right side
    216,998.55x = 44,547,140,316.73
  5. Step 5: Solve for x
    x = 44,547,140,316.73/216,998.55
  6. Step 6: Final answer
    x = 205,287.73

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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.