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Finding the Fourth Proportional to 216,661.05, 325,155.60 and 141,756.30

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Solution

The fourth proportional to 216,661.05, 325,155.60 and 141,756.30 is: 212,741.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,661.05 : 325,155.60 = 141,756.30 : x
  2. Step 2: Convert to fraction form
    216,661.05/325,155.60 = 141,756.30/x
  3. Step 3: Cross multiply
    216,661.05x = 325,155.60 × 141,756.30
  4. Step 4: Simplify right side
    216,661.05x = 46,092,854,780.28
  5. Step 5: Solve for x
    x = 46,092,854,780.28/216,661.05
  6. Step 6: Final answer
    x = 212,741.77

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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.